Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * usbmidi.c - ALSA USB MIDI driver | |
3 | * | |
96f61d9a | 4 | * Copyright (c) 2002-2009 Clemens Ladisch |
1da177e4 LT |
5 | * All rights reserved. |
6 | * | |
7 | * Based on the OSS usb-midi driver by NAGANO Daisuke, | |
8 | * NetBSD's umidi driver by Takuya SHIOZAKI, | |
9 | * the "USB Device Class Definition for MIDI Devices" by Roland | |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. The name of the author may not be used to endorse or promote products | |
18 | * derived from this software without specific prior written permission. | |
19 | * | |
20 | * Alternatively, this software may be distributed and/or modified under the | |
21 | * terms of the GNU General Public License as published by the Free Software | |
22 | * Foundation; either version 2 of the License, or (at your option) any later | |
23 | * version. | |
24 | * | |
25 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND | |
26 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
27 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
28 | * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR | |
29 | * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
30 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
31 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
32 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
33 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
34 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
35 | * SUCH DAMAGE. | |
36 | */ | |
37 | ||
1da177e4 LT |
38 | #include <linux/kernel.h> |
39 | #include <linux/types.h> | |
40 | #include <linux/bitops.h> | |
41 | #include <linux/interrupt.h> | |
42 | #include <linux/spinlock.h> | |
43 | #include <linux/string.h> | |
44 | #include <linux/init.h> | |
45 | #include <linux/slab.h> | |
c8846970 | 46 | #include <linux/timer.h> |
1da177e4 | 47 | #include <linux/usb.h> |
a65dd997 | 48 | #include <linux/wait.h> |
de48c7bc | 49 | #include <linux/usb/audio.h> |
da155d5b | 50 | #include <linux/module.h> |
de48c7bc | 51 | |
1da177e4 | 52 | #include <sound/core.h> |
96f61d9a | 53 | #include <sound/control.h> |
1da177e4 | 54 | #include <sound/rawmidi.h> |
a7b928ac | 55 | #include <sound/asequencer.h> |
1da177e4 | 56 | #include "usbaudio.h" |
e5779998 | 57 | #include "midi.h" |
88a8516a | 58 | #include "power.h" |
e5779998 | 59 | #include "helper.h" |
1da177e4 LT |
60 | |
61 | /* | |
62 | * define this to log all USB packets | |
63 | */ | |
64 | /* #define DUMP_PACKETS */ | |
65 | ||
c8846970 CL |
66 | /* |
67 | * how long to wait after some USB errors, so that khubd can disconnect() us | |
68 | * without too many spurious errors | |
69 | */ | |
70 | #define ERROR_DELAY_JIFFIES (HZ / 10) | |
71 | ||
ed4affa5 | 72 | #define OUTPUT_URBS 7 |
4773d1fb CL |
73 | #define INPUT_URBS 7 |
74 | ||
1da177e4 LT |
75 | |
76 | MODULE_AUTHOR("Clemens Ladisch <clemens@ladisch.de>"); | |
77 | MODULE_DESCRIPTION("USB Audio/MIDI helper module"); | |
78 | MODULE_LICENSE("Dual BSD/GPL"); | |
79 | ||
80 | ||
81 | struct usb_ms_header_descriptor { | |
82 | __u8 bLength; | |
83 | __u8 bDescriptorType; | |
84 | __u8 bDescriptorSubtype; | |
85 | __u8 bcdMSC[2]; | |
86 | __le16 wTotalLength; | |
87 | } __attribute__ ((packed)); | |
88 | ||
89 | struct usb_ms_endpoint_descriptor { | |
90 | __u8 bLength; | |
91 | __u8 bDescriptorType; | |
92 | __u8 bDescriptorSubtype; | |
93 | __u8 bNumEmbMIDIJack; | |
94 | __u8 baAssocJackID[0]; | |
95 | } __attribute__ ((packed)); | |
96 | ||
86e07d34 TI |
97 | struct snd_usb_midi_in_endpoint; |
98 | struct snd_usb_midi_out_endpoint; | |
99 | struct snd_usb_midi_endpoint; | |
1da177e4 LT |
100 | |
101 | struct usb_protocol_ops { | |
86e07d34 | 102 | void (*input)(struct snd_usb_midi_in_endpoint*, uint8_t*, int); |
ed4affa5 | 103 | void (*output)(struct snd_usb_midi_out_endpoint *ep, struct urb *urb); |
1da177e4 | 104 | void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t); |
86e07d34 TI |
105 | void (*init_out_endpoint)(struct snd_usb_midi_out_endpoint*); |
106 | void (*finish_out_endpoint)(struct snd_usb_midi_out_endpoint*); | |
1da177e4 LT |
107 | }; |
108 | ||
109 | struct snd_usb_midi { | |
d82af9f9 CL |
110 | struct usb_device *dev; |
111 | struct snd_card *card; | |
1da177e4 | 112 | struct usb_interface *iface; |
86e07d34 TI |
113 | const struct snd_usb_audio_quirk *quirk; |
114 | struct snd_rawmidi *rmidi; | |
1da177e4 LT |
115 | struct usb_protocol_ops* usb_protocol_ops; |
116 | struct list_head list; | |
c8846970 | 117 | struct timer_list error_timer; |
c0792e00 | 118 | spinlock_t disc_lock; |
59866da9 | 119 | struct rw_semaphore disc_rwsem; |
96f61d9a | 120 | struct mutex mutex; |
d82af9f9 CL |
121 | u32 usb_id; |
122 | int next_midi_device; | |
1da177e4 LT |
123 | |
124 | struct snd_usb_midi_endpoint { | |
86e07d34 TI |
125 | struct snd_usb_midi_out_endpoint *out; |
126 | struct snd_usb_midi_in_endpoint *in; | |
1da177e4 LT |
127 | } endpoints[MIDI_MAX_ENDPOINTS]; |
128 | unsigned long input_triggered; | |
f5f16541 TI |
129 | bool autopm_reference; |
130 | unsigned int opened[2]; | |
c0792e00 | 131 | unsigned char disconnected; |
f5f16541 | 132 | unsigned char input_running; |
96f61d9a CL |
133 | |
134 | struct snd_kcontrol *roland_load_ctl; | |
1da177e4 LT |
135 | }; |
136 | ||
137 | struct snd_usb_midi_out_endpoint { | |
86e07d34 | 138 | struct snd_usb_midi* umidi; |
ed4affa5 CL |
139 | struct out_urb_context { |
140 | struct urb *urb; | |
141 | struct snd_usb_midi_out_endpoint *ep; | |
142 | } urbs[OUTPUT_URBS]; | |
143 | unsigned int active_urbs; | |
a65dd997 | 144 | unsigned int drain_urbs; |
1da177e4 LT |
145 | int max_transfer; /* size of urb buffer */ |
146 | struct tasklet_struct tasklet; | |
a65dd997 | 147 | unsigned int next_urb; |
1da177e4 LT |
148 | spinlock_t buffer_lock; |
149 | ||
150 | struct usbmidi_out_port { | |
86e07d34 TI |
151 | struct snd_usb_midi_out_endpoint* ep; |
152 | struct snd_rawmidi_substream *substream; | |
1da177e4 LT |
153 | int active; |
154 | uint8_t cable; /* cable number << 4 */ | |
155 | uint8_t state; | |
156 | #define STATE_UNKNOWN 0 | |
157 | #define STATE_1PARAM 1 | |
158 | #define STATE_2PARAM_1 2 | |
159 | #define STATE_2PARAM_2 3 | |
160 | #define STATE_SYSEX_0 4 | |
161 | #define STATE_SYSEX_1 5 | |
162 | #define STATE_SYSEX_2 6 | |
163 | uint8_t data[2]; | |
164 | } ports[0x10]; | |
165 | int current_port; | |
a65dd997 CL |
166 | |
167 | wait_queue_head_t drain_wait; | |
1da177e4 LT |
168 | }; |
169 | ||
170 | struct snd_usb_midi_in_endpoint { | |
86e07d34 | 171 | struct snd_usb_midi* umidi; |
4773d1fb | 172 | struct urb* urbs[INPUT_URBS]; |
1da177e4 | 173 | struct usbmidi_in_port { |
86e07d34 | 174 | struct snd_rawmidi_substream *substream; |
d05cc104 | 175 | u8 running_status_length; |
1da177e4 | 176 | } ports[0x10]; |
c8846970 CL |
177 | u8 seen_f5; |
178 | u8 error_resubmit; | |
1da177e4 LT |
179 | int current_port; |
180 | }; | |
181 | ||
86e07d34 | 182 | static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint* ep); |
1da177e4 LT |
183 | |
184 | static const uint8_t snd_usbmidi_cin_length[] = { | |
185 | 0, 0, 2, 3, 3, 1, 2, 3, 3, 3, 3, 3, 2, 2, 3, 1 | |
186 | }; | |
187 | ||
188 | /* | |
189 | * Submits the URB, with error handling. | |
190 | */ | |
55016f10 | 191 | static int snd_usbmidi_submit_urb(struct urb* urb, gfp_t flags) |
1da177e4 LT |
192 | { |
193 | int err = usb_submit_urb(urb, flags); | |
194 | if (err < 0 && err != -ENODEV) | |
195 | snd_printk(KERN_ERR "usb_submit_urb: %d\n", err); | |
196 | return err; | |
197 | } | |
198 | ||
199 | /* | |
200 | * Error handling for URB completion functions. | |
201 | */ | |
202 | static int snd_usbmidi_urb_error(int status) | |
203 | { | |
c8846970 CL |
204 | switch (status) { |
205 | /* manually unlinked, or device gone */ | |
206 | case -ENOENT: | |
207 | case -ECONNRESET: | |
208 | case -ESHUTDOWN: | |
209 | case -ENODEV: | |
210 | return -ENODEV; | |
211 | /* errors that might occur during unplugging */ | |
38e2bfc9 PZ |
212 | case -EPROTO: |
213 | case -ETIME: | |
214 | case -EILSEQ: | |
c8846970 CL |
215 | return -EIO; |
216 | default: | |
217 | snd_printk(KERN_ERR "urb status %d\n", status); | |
218 | return 0; /* continue */ | |
219 | } | |
1da177e4 LT |
220 | } |
221 | ||
222 | /* | |
223 | * Receives a chunk of MIDI data. | |
224 | */ | |
86e07d34 | 225 | static void snd_usbmidi_input_data(struct snd_usb_midi_in_endpoint* ep, int portidx, |
1da177e4 LT |
226 | uint8_t* data, int length) |
227 | { | |
86e07d34 | 228 | struct usbmidi_in_port* port = &ep->ports[portidx]; |
1da177e4 LT |
229 | |
230 | if (!port->substream) { | |
231 | snd_printd("unexpected port %d!\n", portidx); | |
232 | return; | |
233 | } | |
234 | if (!test_bit(port->substream->number, &ep->umidi->input_triggered)) | |
235 | return; | |
236 | snd_rawmidi_receive(port->substream, data, length); | |
237 | } | |
238 | ||
239 | #ifdef DUMP_PACKETS | |
240 | static void dump_urb(const char *type, const u8 *data, int length) | |
241 | { | |
242 | snd_printk(KERN_DEBUG "%s packet: [", type); | |
243 | for (; length > 0; ++data, --length) | |
244 | printk(" %02x", *data); | |
245 | printk(" ]\n"); | |
246 | } | |
247 | #else | |
248 | #define dump_urb(type, data, length) /* nothing */ | |
249 | #endif | |
250 | ||
251 | /* | |
252 | * Processes the data read from the device. | |
253 | */ | |
7d12e780 | 254 | static void snd_usbmidi_in_urb_complete(struct urb* urb) |
1da177e4 | 255 | { |
86e07d34 | 256 | struct snd_usb_midi_in_endpoint* ep = urb->context; |
1da177e4 LT |
257 | |
258 | if (urb->status == 0) { | |
259 | dump_urb("received", urb->transfer_buffer, urb->actual_length); | |
260 | ep->umidi->usb_protocol_ops->input(ep, urb->transfer_buffer, | |
261 | urb->actual_length); | |
262 | } else { | |
c8846970 CL |
263 | int err = snd_usbmidi_urb_error(urb->status); |
264 | if (err < 0) { | |
265 | if (err != -ENODEV) { | |
266 | ep->error_resubmit = 1; | |
267 | mod_timer(&ep->umidi->error_timer, | |
268 | jiffies + ERROR_DELAY_JIFFIES); | |
269 | } | |
1da177e4 | 270 | return; |
c8846970 | 271 | } |
1da177e4 LT |
272 | } |
273 | ||
d82af9f9 | 274 | urb->dev = ep->umidi->dev; |
3cfc1eb1 | 275 | snd_usbmidi_submit_urb(urb, GFP_ATOMIC); |
1da177e4 LT |
276 | } |
277 | ||
7d12e780 | 278 | static void snd_usbmidi_out_urb_complete(struct urb* urb) |
1da177e4 | 279 | { |
ed4affa5 CL |
280 | struct out_urb_context *context = urb->context; |
281 | struct snd_usb_midi_out_endpoint* ep = context->ep; | |
a65dd997 | 282 | unsigned int urb_index; |
1da177e4 LT |
283 | |
284 | spin_lock(&ep->buffer_lock); | |
a65dd997 CL |
285 | urb_index = context - ep->urbs; |
286 | ep->active_urbs &= ~(1 << urb_index); | |
287 | if (unlikely(ep->drain_urbs)) { | |
288 | ep->drain_urbs &= ~(1 << urb_index); | |
289 | wake_up(&ep->drain_wait); | |
290 | } | |
1da177e4 LT |
291 | spin_unlock(&ep->buffer_lock); |
292 | if (urb->status < 0) { | |
c8846970 CL |
293 | int err = snd_usbmidi_urb_error(urb->status); |
294 | if (err < 0) { | |
295 | if (err != -ENODEV) | |
296 | mod_timer(&ep->umidi->error_timer, | |
297 | jiffies + ERROR_DELAY_JIFFIES); | |
1da177e4 | 298 | return; |
c8846970 | 299 | } |
1da177e4 LT |
300 | } |
301 | snd_usbmidi_do_output(ep); | |
302 | } | |
303 | ||
304 | /* | |
305 | * This is called when some data should be transferred to the device | |
306 | * (from one or more substreams). | |
307 | */ | |
86e07d34 | 308 | static void snd_usbmidi_do_output(struct snd_usb_midi_out_endpoint* ep) |
1da177e4 | 309 | { |
ed4affa5 CL |
310 | unsigned int urb_index; |
311 | struct urb* urb; | |
1da177e4 LT |
312 | unsigned long flags; |
313 | ||
314 | spin_lock_irqsave(&ep->buffer_lock, flags); | |
d82af9f9 | 315 | if (ep->umidi->disconnected) { |
1da177e4 LT |
316 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
317 | return; | |
318 | } | |
319 | ||
a65dd997 | 320 | urb_index = ep->next_urb; |
ed4affa5 | 321 | for (;;) { |
a65dd997 CL |
322 | if (!(ep->active_urbs & (1 << urb_index))) { |
323 | urb = ep->urbs[urb_index].urb; | |
324 | urb->transfer_buffer_length = 0; | |
325 | ep->umidi->usb_protocol_ops->output(ep, urb); | |
326 | if (urb->transfer_buffer_length == 0) | |
ed4affa5 | 327 | break; |
1da177e4 | 328 | |
a65dd997 CL |
329 | dump_urb("sending", urb->transfer_buffer, |
330 | urb->transfer_buffer_length); | |
d82af9f9 | 331 | urb->dev = ep->umidi->dev; |
a65dd997 CL |
332 | if (snd_usbmidi_submit_urb(urb, GFP_ATOMIC) < 0) |
333 | break; | |
334 | ep->active_urbs |= 1 << urb_index; | |
335 | } | |
336 | if (++urb_index >= OUTPUT_URBS) | |
337 | urb_index = 0; | |
338 | if (urb_index == ep->next_urb) | |
ed4affa5 | 339 | break; |
1da177e4 | 340 | } |
a65dd997 | 341 | ep->next_urb = urb_index; |
1da177e4 LT |
342 | spin_unlock_irqrestore(&ep->buffer_lock, flags); |
343 | } | |
344 | ||
345 | static void snd_usbmidi_out_tasklet(unsigned long data) | |
346 | { | |
86e07d34 | 347 | struct snd_usb_midi_out_endpoint* ep = (struct snd_usb_midi_out_endpoint *) data; |
1da177e4 LT |
348 | |
349 | snd_usbmidi_do_output(ep); | |
350 | } | |
351 | ||
c8846970 CL |
352 | /* called after transfers had been interrupted due to some USB error */ |
353 | static void snd_usbmidi_error_timer(unsigned long data) | |
354 | { | |
86e07d34 | 355 | struct snd_usb_midi *umidi = (struct snd_usb_midi *)data; |
4773d1fb | 356 | unsigned int i, j; |
c8846970 | 357 | |
c0792e00 TI |
358 | spin_lock(&umidi->disc_lock); |
359 | if (umidi->disconnected) { | |
360 | spin_unlock(&umidi->disc_lock); | |
361 | return; | |
362 | } | |
c8846970 | 363 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
86e07d34 | 364 | struct snd_usb_midi_in_endpoint *in = umidi->endpoints[i].in; |
c8846970 CL |
365 | if (in && in->error_resubmit) { |
366 | in->error_resubmit = 0; | |
4773d1fb | 367 | for (j = 0; j < INPUT_URBS; ++j) { |
d82af9f9 | 368 | in->urbs[j]->dev = umidi->dev; |
4773d1fb CL |
369 | snd_usbmidi_submit_urb(in->urbs[j], GFP_ATOMIC); |
370 | } | |
c8846970 CL |
371 | } |
372 | if (umidi->endpoints[i].out) | |
373 | snd_usbmidi_do_output(umidi->endpoints[i].out); | |
374 | } | |
c0792e00 | 375 | spin_unlock(&umidi->disc_lock); |
c8846970 CL |
376 | } |
377 | ||
1da177e4 | 378 | /* helper function to send static data that may not DMA-able */ |
86e07d34 | 379 | static int send_bulk_static_data(struct snd_usb_midi_out_endpoint* ep, |
1da177e4 LT |
380 | const void *data, int len) |
381 | { | |
ed4affa5 | 382 | int err = 0; |
52978be6 | 383 | void *buf = kmemdup(data, len, GFP_KERNEL); |
1da177e4 LT |
384 | if (!buf) |
385 | return -ENOMEM; | |
1da177e4 | 386 | dump_urb("sending", buf, len); |
ed4affa5 | 387 | if (ep->urbs[0].urb) |
d82af9f9 | 388 | err = usb_bulk_msg(ep->umidi->dev, ep->urbs[0].urb->pipe, |
ed4affa5 | 389 | buf, len, NULL, 250); |
1da177e4 LT |
390 | kfree(buf); |
391 | return err; | |
392 | } | |
393 | ||
394 | /* | |
395 | * Standard USB MIDI protocol: see the spec. | |
396 | * Midiman protocol: like the standard protocol, but the control byte is the | |
397 | * fourth byte in each packet, and uses length instead of CIN. | |
398 | */ | |
399 | ||
86e07d34 | 400 | static void snd_usbmidi_standard_input(struct snd_usb_midi_in_endpoint* ep, |
1da177e4 LT |
401 | uint8_t* buffer, int buffer_length) |
402 | { | |
403 | int i; | |
404 | ||
405 | for (i = 0; i + 3 < buffer_length; i += 4) | |
406 | if (buffer[i] != 0) { | |
407 | int cable = buffer[i] >> 4; | |
408 | int length = snd_usbmidi_cin_length[buffer[i] & 0x0f]; | |
409 | snd_usbmidi_input_data(ep, cable, &buffer[i + 1], length); | |
410 | } | |
411 | } | |
412 | ||
86e07d34 | 413 | static void snd_usbmidi_midiman_input(struct snd_usb_midi_in_endpoint* ep, |
1da177e4 LT |
414 | uint8_t* buffer, int buffer_length) |
415 | { | |
416 | int i; | |
417 | ||
418 | for (i = 0; i + 3 < buffer_length; i += 4) | |
419 | if (buffer[i + 3] != 0) { | |
420 | int port = buffer[i + 3] >> 4; | |
421 | int length = buffer[i + 3] & 3; | |
422 | snd_usbmidi_input_data(ep, port, &buffer[i], length); | |
423 | } | |
424 | } | |
425 | ||
d05cc104 CL |
426 | /* |
427 | * Buggy M-Audio device: running status on input results in a packet that has | |
428 | * the data bytes but not the status byte and that is marked with CIN 4. | |
429 | */ | |
430 | static void snd_usbmidi_maudio_broken_running_status_input( | |
431 | struct snd_usb_midi_in_endpoint* ep, | |
432 | uint8_t* buffer, int buffer_length) | |
433 | { | |
434 | int i; | |
435 | ||
436 | for (i = 0; i + 3 < buffer_length; i += 4) | |
437 | if (buffer[i] != 0) { | |
438 | int cable = buffer[i] >> 4; | |
439 | u8 cin = buffer[i] & 0x0f; | |
440 | struct usbmidi_in_port *port = &ep->ports[cable]; | |
441 | int length; | |
21af7d8c | 442 | |
d05cc104 CL |
443 | length = snd_usbmidi_cin_length[cin]; |
444 | if (cin == 0xf && buffer[i + 1] >= 0xf8) | |
445 | ; /* realtime msg: no running status change */ | |
446 | else if (cin >= 0x8 && cin <= 0xe) | |
447 | /* channel msg */ | |
448 | port->running_status_length = length - 1; | |
449 | else if (cin == 0x4 && | |
450 | port->running_status_length != 0 && | |
451 | buffer[i + 1] < 0x80) | |
452 | /* CIN 4 that is not a SysEx */ | |
453 | length = port->running_status_length; | |
454 | else | |
455 | /* | |
456 | * All other msgs cannot begin running status. | |
457 | * (A channel msg sent as two or three CIN 0xF | |
458 | * packets could in theory, but this device | |
459 | * doesn't use this format.) | |
460 | */ | |
461 | port->running_status_length = 0; | |
462 | snd_usbmidi_input_data(ep, cable, &buffer[i + 1], length); | |
463 | } | |
464 | } | |
465 | ||
61870aed CL |
466 | /* |
467 | * CME protocol: like the standard protocol, but SysEx commands are sent as a | |
468 | * single USB packet preceded by a 0x0F byte. | |
469 | */ | |
470 | static void snd_usbmidi_cme_input(struct snd_usb_midi_in_endpoint *ep, | |
471 | uint8_t *buffer, int buffer_length) | |
472 | { | |
473 | if (buffer_length < 2 || (buffer[0] & 0x0f) != 0x0f) | |
474 | snd_usbmidi_standard_input(ep, buffer, buffer_length); | |
475 | else | |
476 | snd_usbmidi_input_data(ep, buffer[0] >> 4, | |
477 | &buffer[1], buffer_length - 1); | |
478 | } | |
479 | ||
1da177e4 LT |
480 | /* |
481 | * Adds one USB MIDI packet to the output buffer. | |
482 | */ | |
483 | static void snd_usbmidi_output_standard_packet(struct urb* urb, uint8_t p0, | |
484 | uint8_t p1, uint8_t p2, uint8_t p3) | |
485 | { | |
486 | ||
487 | uint8_t* buf = (uint8_t*)urb->transfer_buffer + urb->transfer_buffer_length; | |
488 | buf[0] = p0; | |
489 | buf[1] = p1; | |
490 | buf[2] = p2; | |
491 | buf[3] = p3; | |
492 | urb->transfer_buffer_length += 4; | |
493 | } | |
494 | ||
495 | /* | |
496 | * Adds one Midiman packet to the output buffer. | |
497 | */ | |
498 | static void snd_usbmidi_output_midiman_packet(struct urb* urb, uint8_t p0, | |
499 | uint8_t p1, uint8_t p2, uint8_t p3) | |
500 | { | |
501 | ||
502 | uint8_t* buf = (uint8_t*)urb->transfer_buffer + urb->transfer_buffer_length; | |
503 | buf[0] = p1; | |
504 | buf[1] = p2; | |
505 | buf[2] = p3; | |
506 | buf[3] = (p0 & 0xf0) | snd_usbmidi_cin_length[p0 & 0x0f]; | |
507 | urb->transfer_buffer_length += 4; | |
508 | } | |
509 | ||
510 | /* | |
511 | * Converts MIDI commands to USB MIDI packets. | |
512 | */ | |
86e07d34 | 513 | static void snd_usbmidi_transmit_byte(struct usbmidi_out_port* port, |
1da177e4 LT |
514 | uint8_t b, struct urb* urb) |
515 | { | |
516 | uint8_t p0 = port->cable; | |
517 | void (*output_packet)(struct urb*, uint8_t, uint8_t, uint8_t, uint8_t) = | |
518 | port->ep->umidi->usb_protocol_ops->output_packet; | |
519 | ||
520 | if (b >= 0xf8) { | |
521 | output_packet(urb, p0 | 0x0f, b, 0, 0); | |
522 | } else if (b >= 0xf0) { | |
523 | switch (b) { | |
524 | case 0xf0: | |
525 | port->data[0] = b; | |
526 | port->state = STATE_SYSEX_1; | |
527 | break; | |
528 | case 0xf1: | |
529 | case 0xf3: | |
530 | port->data[0] = b; | |
531 | port->state = STATE_1PARAM; | |
532 | break; | |
533 | case 0xf2: | |
534 | port->data[0] = b; | |
535 | port->state = STATE_2PARAM_1; | |
536 | break; | |
537 | case 0xf4: | |
538 | case 0xf5: | |
539 | port->state = STATE_UNKNOWN; | |
540 | break; | |
541 | case 0xf6: | |
542 | output_packet(urb, p0 | 0x05, 0xf6, 0, 0); | |
543 | port->state = STATE_UNKNOWN; | |
544 | break; | |
545 | case 0xf7: | |
546 | switch (port->state) { | |
547 | case STATE_SYSEX_0: | |
548 | output_packet(urb, p0 | 0x05, 0xf7, 0, 0); | |
549 | break; | |
550 | case STATE_SYSEX_1: | |
551 | output_packet(urb, p0 | 0x06, port->data[0], 0xf7, 0); | |
552 | break; | |
553 | case STATE_SYSEX_2: | |
554 | output_packet(urb, p0 | 0x07, port->data[0], port->data[1], 0xf7); | |
555 | break; | |
556 | } | |
557 | port->state = STATE_UNKNOWN; | |
558 | break; | |
559 | } | |
560 | } else if (b >= 0x80) { | |
561 | port->data[0] = b; | |
562 | if (b >= 0xc0 && b <= 0xdf) | |
563 | port->state = STATE_1PARAM; | |
564 | else | |
565 | port->state = STATE_2PARAM_1; | |
566 | } else { /* b < 0x80 */ | |
567 | switch (port->state) { | |
568 | case STATE_1PARAM: | |
569 | if (port->data[0] < 0xf0) { | |
570 | p0 |= port->data[0] >> 4; | |
571 | } else { | |
572 | p0 |= 0x02; | |
573 | port->state = STATE_UNKNOWN; | |
574 | } | |
575 | output_packet(urb, p0, port->data[0], b, 0); | |
576 | break; | |
577 | case STATE_2PARAM_1: | |
578 | port->data[1] = b; | |
579 | port->state = STATE_2PARAM_2; | |
580 | break; | |
581 | case STATE_2PARAM_2: | |
582 | if (port->data[0] < 0xf0) { | |
583 | p0 |= port->data[0] >> 4; | |
584 | port->state = STATE_2PARAM_1; | |
585 | } else { | |
586 | p0 |= 0x03; | |
587 | port->state = STATE_UNKNOWN; | |
588 | } | |
589 | output_packet(urb, p0, port->data[0], port->data[1], b); | |
590 | break; | |
591 | case STATE_SYSEX_0: | |
592 | port->data[0] = b; | |
593 | port->state = STATE_SYSEX_1; | |
594 | break; | |
595 | case STATE_SYSEX_1: | |
596 | port->data[1] = b; | |
597 | port->state = STATE_SYSEX_2; | |
598 | break; | |
599 | case STATE_SYSEX_2: | |
600 | output_packet(urb, p0 | 0x04, port->data[0], port->data[1], b); | |
601 | port->state = STATE_SYSEX_0; | |
602 | break; | |
603 | } | |
604 | } | |
605 | } | |
606 | ||
ed4affa5 CL |
607 | static void snd_usbmidi_standard_output(struct snd_usb_midi_out_endpoint* ep, |
608 | struct urb *urb) | |
1da177e4 | 609 | { |
1da177e4 LT |
610 | int p; |
611 | ||
612 | /* FIXME: lower-numbered ports can starve higher-numbered ports */ | |
613 | for (p = 0; p < 0x10; ++p) { | |
86e07d34 | 614 | struct usbmidi_out_port* port = &ep->ports[p]; |
1da177e4 LT |
615 | if (!port->active) |
616 | continue; | |
617 | while (urb->transfer_buffer_length + 3 < ep->max_transfer) { | |
618 | uint8_t b; | |
619 | if (snd_rawmidi_transmit(port->substream, &b, 1) != 1) { | |
620 | port->active = 0; | |
621 | break; | |
622 | } | |
623 | snd_usbmidi_transmit_byte(port, b, urb); | |
624 | } | |
625 | } | |
626 | } | |
627 | ||
628 | static struct usb_protocol_ops snd_usbmidi_standard_ops = { | |
629 | .input = snd_usbmidi_standard_input, | |
630 | .output = snd_usbmidi_standard_output, | |
631 | .output_packet = snd_usbmidi_output_standard_packet, | |
632 | }; | |
633 | ||
634 | static struct usb_protocol_ops snd_usbmidi_midiman_ops = { | |
635 | .input = snd_usbmidi_midiman_input, | |
21af7d8c | 636 | .output = snd_usbmidi_standard_output, |
1da177e4 LT |
637 | .output_packet = snd_usbmidi_output_midiman_packet, |
638 | }; | |
639 | ||
d05cc104 CL |
640 | static struct usb_protocol_ops snd_usbmidi_maudio_broken_running_status_ops = { |
641 | .input = snd_usbmidi_maudio_broken_running_status_input, | |
21af7d8c | 642 | .output = snd_usbmidi_standard_output, |
d05cc104 CL |
643 | .output_packet = snd_usbmidi_output_standard_packet, |
644 | }; | |
645 | ||
61870aed CL |
646 | static struct usb_protocol_ops snd_usbmidi_cme_ops = { |
647 | .input = snd_usbmidi_cme_input, | |
648 | .output = snd_usbmidi_standard_output, | |
649 | .output_packet = snd_usbmidi_output_standard_packet, | |
650 | }; | |
651 | ||
4434ade8 KF |
652 | /* |
653 | * AKAI MPD16 protocol: | |
654 | * | |
655 | * For control port (endpoint 1): | |
656 | * ============================== | |
657 | * One or more chunks consisting of first byte of (0x10 | msg_len) and then a | |
658 | * SysEx message (msg_len=9 bytes long). | |
659 | * | |
660 | * For data port (endpoint 2): | |
661 | * =========================== | |
662 | * One or more chunks consisting of first byte of (0x20 | msg_len) and then a | |
663 | * MIDI message (msg_len bytes long) | |
664 | * | |
665 | * Messages sent: Active Sense, Note On, Poly Pressure, Control Change. | |
666 | */ | |
667 | static void snd_usbmidi_akai_input(struct snd_usb_midi_in_endpoint *ep, | |
668 | uint8_t *buffer, int buffer_length) | |
669 | { | |
670 | unsigned int pos = 0; | |
671 | unsigned int len = (unsigned int)buffer_length; | |
672 | while (pos < len) { | |
673 | unsigned int port = (buffer[pos] >> 4) - 1; | |
674 | unsigned int msg_len = buffer[pos] & 0x0f; | |
675 | pos++; | |
676 | if (pos + msg_len <= len && port < 2) | |
677 | snd_usbmidi_input_data(ep, 0, &buffer[pos], msg_len); | |
678 | pos += msg_len; | |
679 | } | |
680 | } | |
681 | ||
682 | #define MAX_AKAI_SYSEX_LEN 9 | |
683 | ||
684 | static void snd_usbmidi_akai_output(struct snd_usb_midi_out_endpoint *ep, | |
685 | struct urb *urb) | |
686 | { | |
687 | uint8_t *msg; | |
688 | int pos, end, count, buf_end; | |
689 | uint8_t tmp[MAX_AKAI_SYSEX_LEN]; | |
690 | struct snd_rawmidi_substream *substream = ep->ports[0].substream; | |
691 | ||
692 | if (!ep->ports[0].active) | |
693 | return; | |
694 | ||
695 | msg = urb->transfer_buffer + urb->transfer_buffer_length; | |
696 | buf_end = ep->max_transfer - MAX_AKAI_SYSEX_LEN - 1; | |
697 | ||
698 | /* only try adding more data when there's space for at least 1 SysEx */ | |
699 | while (urb->transfer_buffer_length < buf_end) { | |
700 | count = snd_rawmidi_transmit_peek(substream, | |
701 | tmp, MAX_AKAI_SYSEX_LEN); | |
702 | if (!count) { | |
703 | ep->ports[0].active = 0; | |
704 | return; | |
705 | } | |
706 | /* try to skip non-SysEx data */ | |
707 | for (pos = 0; pos < count && tmp[pos] != 0xF0; pos++) | |
708 | ; | |
709 | ||
710 | if (pos > 0) { | |
711 | snd_rawmidi_transmit_ack(substream, pos); | |
712 | continue; | |
713 | } | |
714 | ||
715 | /* look for the start or end marker */ | |
716 | for (end = 1; end < count && tmp[end] < 0xF0; end++) | |
717 | ; | |
718 | ||
719 | /* next SysEx started before the end of current one */ | |
720 | if (end < count && tmp[end] == 0xF0) { | |
721 | /* it's incomplete - drop it */ | |
722 | snd_rawmidi_transmit_ack(substream, end); | |
723 | continue; | |
724 | } | |
725 | /* SysEx complete */ | |
726 | if (end < count && tmp[end] == 0xF7) { | |
727 | /* queue it, ack it, and get the next one */ | |
728 | count = end + 1; | |
729 | msg[0] = 0x10 | count; | |
730 | memcpy(&msg[1], tmp, count); | |
731 | snd_rawmidi_transmit_ack(substream, count); | |
732 | urb->transfer_buffer_length += count + 1; | |
733 | msg += count + 1; | |
734 | continue; | |
735 | } | |
736 | /* less than 9 bytes and no end byte - wait for more */ | |
737 | if (count < MAX_AKAI_SYSEX_LEN) { | |
738 | ep->ports[0].active = 0; | |
739 | return; | |
740 | } | |
741 | /* 9 bytes and no end marker in sight - malformed, skip it */ | |
742 | snd_rawmidi_transmit_ack(substream, count); | |
743 | } | |
744 | } | |
745 | ||
746 | static struct usb_protocol_ops snd_usbmidi_akai_ops = { | |
747 | .input = snd_usbmidi_akai_input, | |
748 | .output = snd_usbmidi_akai_output, | |
749 | }; | |
750 | ||
1da177e4 LT |
751 | /* |
752 | * Novation USB MIDI protocol: number of data bytes is in the first byte | |
753 | * (when receiving) (+1!) or in the second byte (when sending); data begins | |
754 | * at the third byte. | |
755 | */ | |
756 | ||
86e07d34 | 757 | static void snd_usbmidi_novation_input(struct snd_usb_midi_in_endpoint* ep, |
1da177e4 LT |
758 | uint8_t* buffer, int buffer_length) |
759 | { | |
760 | if (buffer_length < 2 || !buffer[0] || buffer_length < buffer[0] + 1) | |
761 | return; | |
762 | snd_usbmidi_input_data(ep, 0, &buffer[2], buffer[0] - 1); | |
763 | } | |
764 | ||
ed4affa5 CL |
765 | static void snd_usbmidi_novation_output(struct snd_usb_midi_out_endpoint* ep, |
766 | struct urb *urb) | |
1da177e4 LT |
767 | { |
768 | uint8_t* transfer_buffer; | |
769 | int count; | |
770 | ||
771 | if (!ep->ports[0].active) | |
772 | return; | |
ed4affa5 | 773 | transfer_buffer = urb->transfer_buffer; |
1da177e4 LT |
774 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
775 | &transfer_buffer[2], | |
776 | ep->max_transfer - 2); | |
777 | if (count < 1) { | |
778 | ep->ports[0].active = 0; | |
779 | return; | |
780 | } | |
781 | transfer_buffer[0] = 0; | |
782 | transfer_buffer[1] = count; | |
ed4affa5 | 783 | urb->transfer_buffer_length = 2 + count; |
1da177e4 LT |
784 | } |
785 | ||
786 | static struct usb_protocol_ops snd_usbmidi_novation_ops = { | |
787 | .input = snd_usbmidi_novation_input, | |
788 | .output = snd_usbmidi_novation_output, | |
789 | }; | |
790 | ||
791 | /* | |
c7f57216 | 792 | * "raw" protocol: just move raw MIDI bytes from/to the endpoint |
1da177e4 LT |
793 | */ |
794 | ||
86e07d34 | 795 | static void snd_usbmidi_raw_input(struct snd_usb_midi_in_endpoint* ep, |
6155aff8 | 796 | uint8_t* buffer, int buffer_length) |
1da177e4 LT |
797 | { |
798 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
799 | } | |
800 | ||
ed4affa5 CL |
801 | static void snd_usbmidi_raw_output(struct snd_usb_midi_out_endpoint* ep, |
802 | struct urb *urb) | |
1da177e4 LT |
803 | { |
804 | int count; | |
805 | ||
806 | if (!ep->ports[0].active) | |
807 | return; | |
808 | count = snd_rawmidi_transmit(ep->ports[0].substream, | |
ed4affa5 | 809 | urb->transfer_buffer, |
1da177e4 LT |
810 | ep->max_transfer); |
811 | if (count < 1) { | |
812 | ep->ports[0].active = 0; | |
813 | return; | |
814 | } | |
ed4affa5 | 815 | urb->transfer_buffer_length = count; |
1da177e4 LT |
816 | } |
817 | ||
6155aff8 CL |
818 | static struct usb_protocol_ops snd_usbmidi_raw_ops = { |
819 | .input = snd_usbmidi_raw_input, | |
820 | .output = snd_usbmidi_raw_output, | |
1da177e4 LT |
821 | }; |
822 | ||
1ef0e0a0 KA |
823 | /* |
824 | * FTDI protocol: raw MIDI bytes, but input packets have two modem status bytes. | |
825 | */ | |
826 | ||
827 | static void snd_usbmidi_ftdi_input(struct snd_usb_midi_in_endpoint* ep, | |
828 | uint8_t* buffer, int buffer_length) | |
829 | { | |
830 | if (buffer_length > 2) | |
831 | snd_usbmidi_input_data(ep, 0, buffer + 2, buffer_length - 2); | |
832 | } | |
833 | ||
834 | static struct usb_protocol_ops snd_usbmidi_ftdi_ops = { | |
835 | .input = snd_usbmidi_ftdi_input, | |
836 | .output = snd_usbmidi_raw_output, | |
837 | }; | |
838 | ||
030a07e4 KW |
839 | static void snd_usbmidi_us122l_input(struct snd_usb_midi_in_endpoint *ep, |
840 | uint8_t *buffer, int buffer_length) | |
841 | { | |
842 | if (buffer_length != 9) | |
843 | return; | |
844 | buffer_length = 8; | |
845 | while (buffer_length && buffer[buffer_length - 1] == 0xFD) | |
846 | buffer_length--; | |
847 | if (buffer_length) | |
848 | snd_usbmidi_input_data(ep, 0, buffer, buffer_length); | |
849 | } | |
850 | ||
ed4affa5 CL |
851 | static void snd_usbmidi_us122l_output(struct snd_usb_midi_out_endpoint *ep, |
852 | struct urb *urb) | |
030a07e4 KW |
853 | { |
854 | int count; | |
855 | ||
856 | if (!ep->ports[0].active) | |
857 | return; | |
4f4e8f69 PZ |
858 | switch (snd_usb_get_speed(ep->umidi->dev)) { |
859 | case USB_SPEED_HIGH: | |
860 | case USB_SPEED_SUPER: | |
861 | count = 1; | |
862 | break; | |
863 | default: | |
864 | count = 2; | |
865 | } | |
030a07e4 | 866 | count = snd_rawmidi_transmit(ep->ports[0].substream, |
ed4affa5 | 867 | urb->transfer_buffer, |
030a07e4 KW |
868 | count); |
869 | if (count < 1) { | |
870 | ep->ports[0].active = 0; | |
871 | return; | |
872 | } | |
873 | ||
921eebdc KW |
874 | memset(urb->transfer_buffer + count, 0xFD, ep->max_transfer - count); |
875 | urb->transfer_buffer_length = ep->max_transfer; | |
030a07e4 KW |
876 | } |
877 | ||
878 | static struct usb_protocol_ops snd_usbmidi_122l_ops = { | |
879 | .input = snd_usbmidi_us122l_input, | |
880 | .output = snd_usbmidi_us122l_output, | |
881 | }; | |
882 | ||
1da177e4 LT |
883 | /* |
884 | * Emagic USB MIDI protocol: raw MIDI with "F5 xx" port switching. | |
885 | */ | |
886 | ||
86e07d34 | 887 | static void snd_usbmidi_emagic_init_out(struct snd_usb_midi_out_endpoint* ep) |
1da177e4 LT |
888 | { |
889 | static const u8 init_data[] = { | |
890 | /* initialization magic: "get version" */ | |
891 | 0xf0, | |
892 | 0x00, 0x20, 0x31, /* Emagic */ | |
893 | 0x64, /* Unitor8 */ | |
894 | 0x0b, /* version number request */ | |
895 | 0x00, /* command version */ | |
896 | 0x00, /* EEPROM, box 0 */ | |
897 | 0xf7 | |
898 | }; | |
899 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
900 | /* while we're at it, pour on more magic */ | |
901 | send_bulk_static_data(ep, init_data, sizeof(init_data)); | |
902 | } | |
903 | ||
86e07d34 | 904 | static void snd_usbmidi_emagic_finish_out(struct snd_usb_midi_out_endpoint* ep) |
1da177e4 LT |
905 | { |
906 | static const u8 finish_data[] = { | |
907 | /* switch to patch mode with last preset */ | |
908 | 0xf0, | |
909 | 0x00, 0x20, 0x31, /* Emagic */ | |
910 | 0x64, /* Unitor8 */ | |
911 | 0x10, /* patch switch command */ | |
912 | 0x00, /* command version */ | |
913 | 0x7f, /* to all boxes */ | |
914 | 0x40, /* last preset in EEPROM */ | |
915 | 0xf7 | |
916 | }; | |
917 | send_bulk_static_data(ep, finish_data, sizeof(finish_data)); | |
918 | } | |
919 | ||
86e07d34 | 920 | static void snd_usbmidi_emagic_input(struct snd_usb_midi_in_endpoint* ep, |
1da177e4 LT |
921 | uint8_t* buffer, int buffer_length) |
922 | { | |
c347e9fc CL |
923 | int i; |
924 | ||
925 | /* FF indicates end of valid data */ | |
926 | for (i = 0; i < buffer_length; ++i) | |
927 | if (buffer[i] == 0xff) { | |
928 | buffer_length = i; | |
929 | break; | |
930 | } | |
1da177e4 LT |
931 | |
932 | /* handle F5 at end of last buffer */ | |
933 | if (ep->seen_f5) | |
934 | goto switch_port; | |
935 | ||
936 | while (buffer_length > 0) { | |
1da177e4 LT |
937 | /* determine size of data until next F5 */ |
938 | for (i = 0; i < buffer_length; ++i) | |
939 | if (buffer[i] == 0xf5) | |
940 | break; | |
941 | snd_usbmidi_input_data(ep, ep->current_port, buffer, i); | |
942 | buffer += i; | |
943 | buffer_length -= i; | |
944 | ||
945 | if (buffer_length <= 0) | |
946 | break; | |
947 | /* assert(buffer[0] == 0xf5); */ | |
948 | ep->seen_f5 = 1; | |
949 | ++buffer; | |
950 | --buffer_length; | |
951 | ||
952 | switch_port: | |
953 | if (buffer_length <= 0) | |
954 | break; | |
955 | if (buffer[0] < 0x80) { | |
956 | ep->current_port = (buffer[0] - 1) & 15; | |
957 | ++buffer; | |
958 | --buffer_length; | |
959 | } | |
960 | ep->seen_f5 = 0; | |
961 | } | |
962 | } | |
963 | ||
ed4affa5 CL |
964 | static void snd_usbmidi_emagic_output(struct snd_usb_midi_out_endpoint* ep, |
965 | struct urb *urb) | |
1da177e4 LT |
966 | { |
967 | int port0 = ep->current_port; | |
ed4affa5 | 968 | uint8_t* buf = urb->transfer_buffer; |
1da177e4 LT |
969 | int buf_free = ep->max_transfer; |
970 | int length, i; | |
971 | ||
972 | for (i = 0; i < 0x10; ++i) { | |
973 | /* round-robin, starting at the last current port */ | |
974 | int portnum = (port0 + i) & 15; | |
86e07d34 | 975 | struct usbmidi_out_port* port = &ep->ports[portnum]; |
1da177e4 LT |
976 | |
977 | if (!port->active) | |
978 | continue; | |
979 | if (snd_rawmidi_transmit_peek(port->substream, buf, 1) != 1) { | |
980 | port->active = 0; | |
981 | continue; | |
982 | } | |
983 | ||
984 | if (portnum != ep->current_port) { | |
985 | if (buf_free < 2) | |
986 | break; | |
987 | ep->current_port = portnum; | |
988 | buf[0] = 0xf5; | |
989 | buf[1] = (portnum + 1) & 15; | |
990 | buf += 2; | |
991 | buf_free -= 2; | |
992 | } | |
993 | ||
994 | if (buf_free < 1) | |
995 | break; | |
996 | length = snd_rawmidi_transmit(port->substream, buf, buf_free); | |
997 | if (length > 0) { | |
998 | buf += length; | |
999 | buf_free -= length; | |
1000 | if (buf_free < 1) | |
1001 | break; | |
1002 | } | |
1003 | } | |
c347e9fc CL |
1004 | if (buf_free < ep->max_transfer && buf_free > 0) { |
1005 | *buf = 0xff; | |
1006 | --buf_free; | |
1007 | } | |
ed4affa5 | 1008 | urb->transfer_buffer_length = ep->max_transfer - buf_free; |
1da177e4 LT |
1009 | } |
1010 | ||
1011 | static struct usb_protocol_ops snd_usbmidi_emagic_ops = { | |
1012 | .input = snd_usbmidi_emagic_input, | |
1013 | .output = snd_usbmidi_emagic_output, | |
1014 | .init_out_endpoint = snd_usbmidi_emagic_init_out, | |
1015 | .finish_out_endpoint = snd_usbmidi_emagic_finish_out, | |
1016 | }; | |
1017 | ||
1018 | ||
96f61d9a CL |
1019 | static void update_roland_altsetting(struct snd_usb_midi* umidi) |
1020 | { | |
1021 | struct usb_interface *intf; | |
1022 | struct usb_host_interface *hostif; | |
1023 | struct usb_interface_descriptor *intfd; | |
1024 | int is_light_load; | |
1025 | ||
1026 | intf = umidi->iface; | |
1027 | is_light_load = intf->cur_altsetting != intf->altsetting; | |
1028 | if (umidi->roland_load_ctl->private_value == is_light_load) | |
1029 | return; | |
1030 | hostif = &intf->altsetting[umidi->roland_load_ctl->private_value]; | |
1031 | intfd = get_iface_desc(hostif); | |
1032 | snd_usbmidi_input_stop(&umidi->list); | |
d82af9f9 | 1033 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
96f61d9a CL |
1034 | intfd->bAlternateSetting); |
1035 | snd_usbmidi_input_start(&umidi->list); | |
1036 | } | |
1037 | ||
f5f16541 TI |
1038 | static int substream_open(struct snd_rawmidi_substream *substream, int dir, |
1039 | int open) | |
96f61d9a CL |
1040 | { |
1041 | struct snd_usb_midi* umidi = substream->rmidi->private_data; | |
1042 | struct snd_kcontrol *ctl; | |
f5f16541 | 1043 | int err; |
96f61d9a | 1044 | |
59866da9 TI |
1045 | down_read(&umidi->disc_rwsem); |
1046 | if (umidi->disconnected) { | |
1047 | up_read(&umidi->disc_rwsem); | |
f5f16541 | 1048 | return open ? -ENODEV : 0; |
59866da9 TI |
1049 | } |
1050 | ||
96f61d9a CL |
1051 | mutex_lock(&umidi->mutex); |
1052 | if (open) { | |
f5f16541 TI |
1053 | if (!umidi->opened[0] && !umidi->opened[1]) { |
1054 | err = usb_autopm_get_interface(umidi->iface); | |
1055 | umidi->autopm_reference = err >= 0; | |
1056 | if (err < 0 && err != -EACCES) { | |
1057 | mutex_unlock(&umidi->mutex); | |
1058 | up_read(&umidi->disc_rwsem); | |
1059 | return -EIO; | |
1060 | } | |
1061 | if (umidi->roland_load_ctl) { | |
1062 | ctl = umidi->roland_load_ctl; | |
1063 | ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
1064 | snd_ctl_notify(umidi->card, | |
96f61d9a | 1065 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 TI |
1066 | update_roland_altsetting(umidi); |
1067 | } | |
96f61d9a | 1068 | } |
f5f16541 TI |
1069 | umidi->opened[dir]++; |
1070 | if (umidi->opened[1]) | |
1071 | snd_usbmidi_input_start(&umidi->list); | |
96f61d9a | 1072 | } else { |
f5f16541 TI |
1073 | umidi->opened[dir]--; |
1074 | if (!umidi->opened[1]) | |
1075 | snd_usbmidi_input_stop(&umidi->list); | |
1076 | if (!umidi->opened[0] && !umidi->opened[1]) { | |
1077 | if (umidi->roland_load_ctl) { | |
1078 | ctl = umidi->roland_load_ctl; | |
1079 | ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE; | |
1080 | snd_ctl_notify(umidi->card, | |
96f61d9a | 1081 | SNDRV_CTL_EVENT_MASK_INFO, &ctl->id); |
f5f16541 TI |
1082 | } |
1083 | if (umidi->autopm_reference) | |
1084 | usb_autopm_put_interface(umidi->iface); | |
96f61d9a CL |
1085 | } |
1086 | } | |
1087 | mutex_unlock(&umidi->mutex); | |
59866da9 | 1088 | up_read(&umidi->disc_rwsem); |
f5f16541 | 1089 | return 0; |
96f61d9a CL |
1090 | } |
1091 | ||
86e07d34 | 1092 | static int snd_usbmidi_output_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1093 | { |
86e07d34 TI |
1094 | struct snd_usb_midi* umidi = substream->rmidi->private_data; |
1095 | struct usbmidi_out_port* port = NULL; | |
1da177e4 LT |
1096 | int i, j; |
1097 | ||
1098 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) | |
1099 | if (umidi->endpoints[i].out) | |
1100 | for (j = 0; j < 0x10; ++j) | |
1101 | if (umidi->endpoints[i].out->ports[j].substream == substream) { | |
1102 | port = &umidi->endpoints[i].out->ports[j]; | |
1103 | break; | |
1104 | } | |
1105 | if (!port) { | |
1106 | snd_BUG(); | |
1107 | return -ENXIO; | |
1108 | } | |
59866da9 | 1109 | |
1da177e4 LT |
1110 | substream->runtime->private_data = port; |
1111 | port->state = STATE_UNKNOWN; | |
f5f16541 | 1112 | return substream_open(substream, 0, 1); |
1da177e4 LT |
1113 | } |
1114 | ||
86e07d34 | 1115 | static int snd_usbmidi_output_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1116 | { |
f5f16541 | 1117 | return substream_open(substream, 0, 0); |
1da177e4 LT |
1118 | } |
1119 | ||
86e07d34 | 1120 | static void snd_usbmidi_output_trigger(struct snd_rawmidi_substream *substream, int up) |
1da177e4 | 1121 | { |
86e07d34 | 1122 | struct usbmidi_out_port* port = (struct usbmidi_out_port*)substream->runtime->private_data; |
1da177e4 LT |
1123 | |
1124 | port->active = up; | |
1125 | if (up) { | |
d82af9f9 | 1126 | if (port->ep->umidi->disconnected) { |
1da177e4 LT |
1127 | /* gobble up remaining bytes to prevent wait in |
1128 | * snd_rawmidi_drain_output */ | |
1129 | while (!snd_rawmidi_transmit_empty(substream)) | |
1130 | snd_rawmidi_transmit_ack(substream, 1); | |
1131 | return; | |
1132 | } | |
1f04128a | 1133 | tasklet_schedule(&port->ep->tasklet); |
1da177e4 LT |
1134 | } |
1135 | } | |
1136 | ||
a65dd997 CL |
1137 | static void snd_usbmidi_output_drain(struct snd_rawmidi_substream *substream) |
1138 | { | |
1139 | struct usbmidi_out_port* port = substream->runtime->private_data; | |
1140 | struct snd_usb_midi_out_endpoint *ep = port->ep; | |
1141 | unsigned int drain_urbs; | |
1142 | DEFINE_WAIT(wait); | |
1143 | long timeout = msecs_to_jiffies(50); | |
1144 | ||
29aac005 TI |
1145 | if (ep->umidi->disconnected) |
1146 | return; | |
a65dd997 CL |
1147 | /* |
1148 | * The substream buffer is empty, but some data might still be in the | |
1149 | * currently active URBs, so we have to wait for those to complete. | |
1150 | */ | |
1151 | spin_lock_irq(&ep->buffer_lock); | |
1152 | drain_urbs = ep->active_urbs; | |
1153 | if (drain_urbs) { | |
1154 | ep->drain_urbs |= drain_urbs; | |
1155 | do { | |
1156 | prepare_to_wait(&ep->drain_wait, &wait, | |
1157 | TASK_UNINTERRUPTIBLE); | |
1158 | spin_unlock_irq(&ep->buffer_lock); | |
1159 | timeout = schedule_timeout(timeout); | |
1160 | spin_lock_irq(&ep->buffer_lock); | |
1161 | drain_urbs &= ep->drain_urbs; | |
1162 | } while (drain_urbs && timeout); | |
1163 | finish_wait(&ep->drain_wait, &wait); | |
1164 | } | |
1165 | spin_unlock_irq(&ep->buffer_lock); | |
1166 | } | |
1167 | ||
86e07d34 | 1168 | static int snd_usbmidi_input_open(struct snd_rawmidi_substream *substream) |
1da177e4 | 1169 | { |
f5f16541 | 1170 | return substream_open(substream, 1, 1); |
1da177e4 LT |
1171 | } |
1172 | ||
86e07d34 | 1173 | static int snd_usbmidi_input_close(struct snd_rawmidi_substream *substream) |
1da177e4 | 1174 | { |
f5f16541 | 1175 | return substream_open(substream, 1, 0); |
1da177e4 LT |
1176 | } |
1177 | ||
86e07d34 | 1178 | static void snd_usbmidi_input_trigger(struct snd_rawmidi_substream *substream, int up) |
1da177e4 | 1179 | { |
86e07d34 | 1180 | struct snd_usb_midi* umidi = substream->rmidi->private_data; |
1da177e4 LT |
1181 | |
1182 | if (up) | |
1183 | set_bit(substream->number, &umidi->input_triggered); | |
1184 | else | |
1185 | clear_bit(substream->number, &umidi->input_triggered); | |
1186 | } | |
1187 | ||
86e07d34 | 1188 | static struct snd_rawmidi_ops snd_usbmidi_output_ops = { |
1da177e4 LT |
1189 | .open = snd_usbmidi_output_open, |
1190 | .close = snd_usbmidi_output_close, | |
1191 | .trigger = snd_usbmidi_output_trigger, | |
a65dd997 | 1192 | .drain = snd_usbmidi_output_drain, |
1da177e4 LT |
1193 | }; |
1194 | ||
86e07d34 | 1195 | static struct snd_rawmidi_ops snd_usbmidi_input_ops = { |
1da177e4 LT |
1196 | .open = snd_usbmidi_input_open, |
1197 | .close = snd_usbmidi_input_close, | |
1198 | .trigger = snd_usbmidi_input_trigger | |
1199 | }; | |
1200 | ||
ed4affa5 CL |
1201 | static void free_urb_and_buffer(struct snd_usb_midi *umidi, struct urb *urb, |
1202 | unsigned int buffer_length) | |
1203 | { | |
997ea58e DM |
1204 | usb_free_coherent(umidi->dev, buffer_length, |
1205 | urb->transfer_buffer, urb->transfer_dma); | |
ed4affa5 CL |
1206 | usb_free_urb(urb); |
1207 | } | |
1208 | ||
1da177e4 LT |
1209 | /* |
1210 | * Frees an input endpoint. | |
1211 | * May be called when ep hasn't been initialized completely. | |
1212 | */ | |
86e07d34 | 1213 | static void snd_usbmidi_in_endpoint_delete(struct snd_usb_midi_in_endpoint* ep) |
1da177e4 | 1214 | { |
4773d1fb CL |
1215 | unsigned int i; |
1216 | ||
ed4affa5 CL |
1217 | for (i = 0; i < INPUT_URBS; ++i) |
1218 | if (ep->urbs[i]) | |
1219 | free_urb_and_buffer(ep->umidi, ep->urbs[i], | |
1220 | ep->urbs[i]->transfer_buffer_length); | |
1da177e4 LT |
1221 | kfree(ep); |
1222 | } | |
1223 | ||
1224 | /* | |
1225 | * Creates an input endpoint. | |
1226 | */ | |
86e07d34 TI |
1227 | static int snd_usbmidi_in_endpoint_create(struct snd_usb_midi* umidi, |
1228 | struct snd_usb_midi_endpoint_info* ep_info, | |
1229 | struct snd_usb_midi_endpoint* rep) | |
1da177e4 | 1230 | { |
86e07d34 | 1231 | struct snd_usb_midi_in_endpoint* ep; |
1da177e4 LT |
1232 | void* buffer; |
1233 | unsigned int pipe; | |
1234 | int length; | |
4773d1fb | 1235 | unsigned int i; |
1da177e4 LT |
1236 | |
1237 | rep->in = NULL; | |
561b220a | 1238 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1239 | if (!ep) |
1240 | return -ENOMEM; | |
1241 | ep->umidi = umidi; | |
1242 | ||
4773d1fb CL |
1243 | for (i = 0; i < INPUT_URBS; ++i) { |
1244 | ep->urbs[i] = usb_alloc_urb(0, GFP_KERNEL); | |
1245 | if (!ep->urbs[i]) { | |
1246 | snd_usbmidi_in_endpoint_delete(ep); | |
1247 | return -ENOMEM; | |
1248 | } | |
1da177e4 LT |
1249 | } |
1250 | if (ep_info->in_interval) | |
d82af9f9 | 1251 | pipe = usb_rcvintpipe(umidi->dev, ep_info->in_ep); |
1da177e4 | 1252 | else |
d82af9f9 CL |
1253 | pipe = usb_rcvbulkpipe(umidi->dev, ep_info->in_ep); |
1254 | length = usb_maxpacket(umidi->dev, pipe, 0); | |
4773d1fb | 1255 | for (i = 0; i < INPUT_URBS; ++i) { |
997ea58e DM |
1256 | buffer = usb_alloc_coherent(umidi->dev, length, GFP_KERNEL, |
1257 | &ep->urbs[i]->transfer_dma); | |
4773d1fb CL |
1258 | if (!buffer) { |
1259 | snd_usbmidi_in_endpoint_delete(ep); | |
1260 | return -ENOMEM; | |
1261 | } | |
1262 | if (ep_info->in_interval) | |
d82af9f9 | 1263 | usb_fill_int_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1264 | pipe, buffer, length, |
1265 | snd_usbmidi_in_urb_complete, | |
1266 | ep, ep_info->in_interval); | |
1267 | else | |
d82af9f9 | 1268 | usb_fill_bulk_urb(ep->urbs[i], umidi->dev, |
4773d1fb CL |
1269 | pipe, buffer, length, |
1270 | snd_usbmidi_in_urb_complete, ep); | |
1271 | ep->urbs[i]->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 1272 | } |
1da177e4 LT |
1273 | |
1274 | rep->in = ep; | |
1275 | return 0; | |
1276 | } | |
1277 | ||
1da177e4 LT |
1278 | /* |
1279 | * Frees an output endpoint. | |
1280 | * May be called when ep hasn't been initialized completely. | |
1281 | */ | |
29aac005 | 1282 | static void snd_usbmidi_out_endpoint_clear(struct snd_usb_midi_out_endpoint *ep) |
1da177e4 | 1283 | { |
ed4affa5 CL |
1284 | unsigned int i; |
1285 | ||
1286 | for (i = 0; i < OUTPUT_URBS; ++i) | |
29aac005 | 1287 | if (ep->urbs[i].urb) { |
ed4affa5 CL |
1288 | free_urb_and_buffer(ep->umidi, ep->urbs[i].urb, |
1289 | ep->max_transfer); | |
29aac005 TI |
1290 | ep->urbs[i].urb = NULL; |
1291 | } | |
1292 | } | |
1293 | ||
1294 | static void snd_usbmidi_out_endpoint_delete(struct snd_usb_midi_out_endpoint *ep) | |
1295 | { | |
1296 | snd_usbmidi_out_endpoint_clear(ep); | |
1da177e4 LT |
1297 | kfree(ep); |
1298 | } | |
1299 | ||
1300 | /* | |
1301 | * Creates an output endpoint, and initializes output ports. | |
1302 | */ | |
86e07d34 TI |
1303 | static int snd_usbmidi_out_endpoint_create(struct snd_usb_midi* umidi, |
1304 | struct snd_usb_midi_endpoint_info* ep_info, | |
21af7d8c | 1305 | struct snd_usb_midi_endpoint* rep) |
1da177e4 | 1306 | { |
86e07d34 | 1307 | struct snd_usb_midi_out_endpoint* ep; |
ed4affa5 | 1308 | unsigned int i; |
1da177e4 LT |
1309 | unsigned int pipe; |
1310 | void* buffer; | |
1311 | ||
1312 | rep->out = NULL; | |
561b220a | 1313 | ep = kzalloc(sizeof(*ep), GFP_KERNEL); |
1da177e4 LT |
1314 | if (!ep) |
1315 | return -ENOMEM; | |
1316 | ep->umidi = umidi; | |
1317 | ||
ed4affa5 CL |
1318 | for (i = 0; i < OUTPUT_URBS; ++i) { |
1319 | ep->urbs[i].urb = usb_alloc_urb(0, GFP_KERNEL); | |
1320 | if (!ep->urbs[i].urb) { | |
1321 | snd_usbmidi_out_endpoint_delete(ep); | |
1322 | return -ENOMEM; | |
1323 | } | |
1324 | ep->urbs[i].ep = ep; | |
1da177e4 | 1325 | } |
a6a712ae | 1326 | if (ep_info->out_interval) |
d82af9f9 | 1327 | pipe = usb_sndintpipe(umidi->dev, ep_info->out_ep); |
a6a712ae | 1328 | else |
d82af9f9 | 1329 | pipe = usb_sndbulkpipe(umidi->dev, ep_info->out_ep); |
f167e1d0 CL |
1330 | switch (umidi->usb_id) { |
1331 | default: | |
d82af9f9 | 1332 | ep->max_transfer = usb_maxpacket(umidi->dev, pipe, 1); |
f167e1d0 CL |
1333 | break; |
1334 | /* | |
1335 | * Various chips declare a packet size larger than 4 bytes, but | |
1336 | * do not actually work with larger packets: | |
1337 | */ | |
1338 | case USB_ID(0x0a92, 0x1020): /* ESI M4U */ | |
1339 | case USB_ID(0x1430, 0x474b): /* RedOctane GH MIDI INTERFACE */ | |
1340 | case USB_ID(0x15ca, 0x0101): /* Textech USB Midi Cable */ | |
1341 | case USB_ID(0x15ca, 0x1806): /* Textech USB Midi Cable */ | |
1342 | case USB_ID(0x1a86, 0x752d): /* QinHeng CH345 "USB2.0-MIDI" */ | |
49c039f0 | 1343 | case USB_ID(0xfc08, 0x0101): /* Unknown vendor Cable */ |
f167e1d0 CL |
1344 | ep->max_transfer = 4; |
1345 | break; | |
921eebdc KW |
1346 | /* |
1347 | * Some devices only work with 9 bytes packet size: | |
1348 | */ | |
1349 | case USB_ID(0x0644, 0x800E): /* Tascam US-122L */ | |
1350 | case USB_ID(0x0644, 0x800F): /* Tascam US-144 */ | |
1351 | ep->max_transfer = 9; | |
1352 | break; | |
f167e1d0 | 1353 | } |
ed4affa5 | 1354 | for (i = 0; i < OUTPUT_URBS; ++i) { |
997ea58e DM |
1355 | buffer = usb_alloc_coherent(umidi->dev, |
1356 | ep->max_transfer, GFP_KERNEL, | |
1357 | &ep->urbs[i].urb->transfer_dma); | |
ed4affa5 CL |
1358 | if (!buffer) { |
1359 | snd_usbmidi_out_endpoint_delete(ep); | |
1360 | return -ENOMEM; | |
1361 | } | |
1362 | if (ep_info->out_interval) | |
d82af9f9 | 1363 | usb_fill_int_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1364 | pipe, buffer, ep->max_transfer, |
1365 | snd_usbmidi_out_urb_complete, | |
1366 | &ep->urbs[i], ep_info->out_interval); | |
1367 | else | |
d82af9f9 | 1368 | usb_fill_bulk_urb(ep->urbs[i].urb, umidi->dev, |
ed4affa5 CL |
1369 | pipe, buffer, ep->max_transfer, |
1370 | snd_usbmidi_out_urb_complete, | |
1371 | &ep->urbs[i]); | |
1372 | ep->urbs[i].urb->transfer_flags = URB_NO_TRANSFER_DMA_MAP; | |
1da177e4 | 1373 | } |
1da177e4 LT |
1374 | |
1375 | spin_lock_init(&ep->buffer_lock); | |
1376 | tasklet_init(&ep->tasklet, snd_usbmidi_out_tasklet, (unsigned long)ep); | |
a65dd997 | 1377 | init_waitqueue_head(&ep->drain_wait); |
1da177e4 LT |
1378 | |
1379 | for (i = 0; i < 0x10; ++i) | |
1380 | if (ep_info->out_cables & (1 << i)) { | |
1381 | ep->ports[i].ep = ep; | |
1382 | ep->ports[i].cable = i << 4; | |
1383 | } | |
1384 | ||
1385 | if (umidi->usb_protocol_ops->init_out_endpoint) | |
1386 | umidi->usb_protocol_ops->init_out_endpoint(ep); | |
1387 | ||
1388 | rep->out = ep; | |
1389 | return 0; | |
1390 | } | |
1391 | ||
1392 | /* | |
1393 | * Frees everything. | |
1394 | */ | |
86e07d34 | 1395 | static void snd_usbmidi_free(struct snd_usb_midi* umidi) |
1da177e4 LT |
1396 | { |
1397 | int i; | |
1398 | ||
1399 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
86e07d34 | 1400 | struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i]; |
1da177e4 LT |
1401 | if (ep->out) |
1402 | snd_usbmidi_out_endpoint_delete(ep->out); | |
1403 | if (ep->in) | |
1404 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1405 | } | |
96f61d9a | 1406 | mutex_destroy(&umidi->mutex); |
1da177e4 LT |
1407 | kfree(umidi); |
1408 | } | |
1409 | ||
1410 | /* | |
1411 | * Unlinks all URBs (must be done before the usb_device is deleted). | |
1412 | */ | |
ee733397 | 1413 | void snd_usbmidi_disconnect(struct list_head* p) |
1da177e4 | 1414 | { |
86e07d34 | 1415 | struct snd_usb_midi* umidi; |
4773d1fb | 1416 | unsigned int i, j; |
1da177e4 | 1417 | |
86e07d34 | 1418 | umidi = list_entry(p, struct snd_usb_midi, list); |
c0792e00 TI |
1419 | /* |
1420 | * an URB's completion handler may start the timer and | |
1421 | * a timer may submit an URB. To reliably break the cycle | |
1422 | * a flag under lock must be used | |
1423 | */ | |
59866da9 | 1424 | down_write(&umidi->disc_rwsem); |
c0792e00 TI |
1425 | spin_lock_irq(&umidi->disc_lock); |
1426 | umidi->disconnected = 1; | |
1427 | spin_unlock_irq(&umidi->disc_lock); | |
59866da9 TI |
1428 | up_write(&umidi->disc_rwsem); |
1429 | ||
1da177e4 | 1430 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
86e07d34 | 1431 | struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i]; |
c8846970 CL |
1432 | if (ep->out) |
1433 | tasklet_kill(&ep->out->tasklet); | |
ed4affa5 CL |
1434 | if (ep->out) { |
1435 | for (j = 0; j < OUTPUT_URBS; ++j) | |
1436 | usb_kill_urb(ep->out->urbs[j].urb); | |
1da177e4 LT |
1437 | if (umidi->usb_protocol_ops->finish_out_endpoint) |
1438 | umidi->usb_protocol_ops->finish_out_endpoint(ep->out); | |
29aac005 TI |
1439 | ep->out->active_urbs = 0; |
1440 | if (ep->out->drain_urbs) { | |
1441 | ep->out->drain_urbs = 0; | |
1442 | wake_up(&ep->out->drain_wait); | |
1443 | } | |
1da177e4 | 1444 | } |
f5e135af | 1445 | if (ep->in) |
4773d1fb CL |
1446 | for (j = 0; j < INPUT_URBS; ++j) |
1447 | usb_kill_urb(ep->in->urbs[j]); | |
7a17daae | 1448 | /* free endpoints here; later call can result in Oops */ |
29aac005 TI |
1449 | if (ep->out) |
1450 | snd_usbmidi_out_endpoint_clear(ep->out); | |
7a17daae TI |
1451 | if (ep->in) { |
1452 | snd_usbmidi_in_endpoint_delete(ep->in); | |
1453 | ep->in = NULL; | |
1454 | } | |
1da177e4 | 1455 | } |
c0792e00 | 1456 | del_timer_sync(&umidi->error_timer); |
1da177e4 LT |
1457 | } |
1458 | ||
86e07d34 | 1459 | static void snd_usbmidi_rawmidi_free(struct snd_rawmidi *rmidi) |
1da177e4 | 1460 | { |
86e07d34 | 1461 | struct snd_usb_midi* umidi = rmidi->private_data; |
1da177e4 LT |
1462 | snd_usbmidi_free(umidi); |
1463 | } | |
1464 | ||
86e07d34 | 1465 | static struct snd_rawmidi_substream *snd_usbmidi_find_substream(struct snd_usb_midi* umidi, |
21af7d8c | 1466 | int stream, int number) |
1da177e4 LT |
1467 | { |
1468 | struct list_head* list; | |
1469 | ||
1470 | list_for_each(list, &umidi->rmidi->streams[stream].substreams) { | |
86e07d34 | 1471 | struct snd_rawmidi_substream *substream = list_entry(list, struct snd_rawmidi_substream, list); |
1da177e4 LT |
1472 | if (substream->number == number) |
1473 | return substream; | |
1474 | } | |
1475 | return NULL; | |
1476 | } | |
1477 | ||
1478 | /* | |
1479 | * This list specifies names for ports that do not fit into the standard | |
1480 | * "(product) MIDI (n)" schema because they aren't external MIDI ports, | |
1481 | * such as internal control or synthesizer ports. | |
1482 | */ | |
a7b928ac | 1483 | static struct port_info { |
27d10f56 | 1484 | u32 id; |
a7b928ac CL |
1485 | short int port; |
1486 | short int voices; | |
1487 | const char *name; | |
1488 | unsigned int seq_flags; | |
1489 | } snd_usbmidi_port_info[] = { | |
1490 | #define PORT_INFO(vendor, product, num, name_, voices_, flags) \ | |
1491 | { .id = USB_ID(vendor, product), \ | |
1492 | .port = num, .voices = voices_, \ | |
1493 | .name = name_, .seq_flags = flags } | |
1494 | #define EXTERNAL_PORT(vendor, product, num, name) \ | |
1495 | PORT_INFO(vendor, product, num, name, 0, \ | |
1496 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1497 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1498 | SNDRV_SEQ_PORT_TYPE_PORT) | |
1499 | #define CONTROL_PORT(vendor, product, num, name) \ | |
1500 | PORT_INFO(vendor, product, num, name, 0, \ | |
1501 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1502 | SNDRV_SEQ_PORT_TYPE_HARDWARE) | |
1503 | #define ROLAND_SYNTH_PORT(vendor, product, num, name, voices) \ | |
1504 | PORT_INFO(vendor, product, num, name, voices, \ | |
1505 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1506 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1507 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1508 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1509 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1510 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1511 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
1512 | #define SOUNDCANVAS_PORT(vendor, product, num, name, voices) \ | |
1513 | PORT_INFO(vendor, product, num, name, voices, \ | |
1514 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | \ | |
1515 | SNDRV_SEQ_PORT_TYPE_MIDI_GM | \ | |
1516 | SNDRV_SEQ_PORT_TYPE_MIDI_GM2 | \ | |
1517 | SNDRV_SEQ_PORT_TYPE_MIDI_GS | \ | |
1518 | SNDRV_SEQ_PORT_TYPE_MIDI_XG | \ | |
1519 | SNDRV_SEQ_PORT_TYPE_MIDI_MT32 | \ | |
1520 | SNDRV_SEQ_PORT_TYPE_HARDWARE | \ | |
1521 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER) | |
1da177e4 | 1522 | /* Roland UA-100 */ |
a7b928ac | 1523 | CONTROL_PORT(0x0582, 0x0000, 2, "%s Control"), |
1da177e4 | 1524 | /* Roland SC-8850 */ |
a7b928ac CL |
1525 | SOUNDCANVAS_PORT(0x0582, 0x0003, 0, "%s Part A", 128), |
1526 | SOUNDCANVAS_PORT(0x0582, 0x0003, 1, "%s Part B", 128), | |
1527 | SOUNDCANVAS_PORT(0x0582, 0x0003, 2, "%s Part C", 128), | |
1528 | SOUNDCANVAS_PORT(0x0582, 0x0003, 3, "%s Part D", 128), | |
1529 | EXTERNAL_PORT(0x0582, 0x0003, 4, "%s MIDI 1"), | |
1530 | EXTERNAL_PORT(0x0582, 0x0003, 5, "%s MIDI 2"), | |
1da177e4 | 1531 | /* Roland U-8 */ |
a7b928ac CL |
1532 | EXTERNAL_PORT(0x0582, 0x0004, 0, "%s MIDI"), |
1533 | CONTROL_PORT(0x0582, 0x0004, 1, "%s Control"), | |
1da177e4 | 1534 | /* Roland SC-8820 */ |
a7b928ac CL |
1535 | SOUNDCANVAS_PORT(0x0582, 0x0007, 0, "%s Part A", 64), |
1536 | SOUNDCANVAS_PORT(0x0582, 0x0007, 1, "%s Part B", 64), | |
1537 | EXTERNAL_PORT(0x0582, 0x0007, 2, "%s MIDI"), | |
1da177e4 | 1538 | /* Roland SK-500 */ |
a7b928ac CL |
1539 | SOUNDCANVAS_PORT(0x0582, 0x000b, 0, "%s Part A", 64), |
1540 | SOUNDCANVAS_PORT(0x0582, 0x000b, 1, "%s Part B", 64), | |
1541 | EXTERNAL_PORT(0x0582, 0x000b, 2, "%s MIDI"), | |
1da177e4 | 1542 | /* Roland SC-D70 */ |
a7b928ac CL |
1543 | SOUNDCANVAS_PORT(0x0582, 0x000c, 0, "%s Part A", 64), |
1544 | SOUNDCANVAS_PORT(0x0582, 0x000c, 1, "%s Part B", 64), | |
1545 | EXTERNAL_PORT(0x0582, 0x000c, 2, "%s MIDI"), | |
1da177e4 | 1546 | /* Edirol UM-880 */ |
a7b928ac | 1547 | CONTROL_PORT(0x0582, 0x0014, 8, "%s Control"), |
1da177e4 | 1548 | /* Edirol SD-90 */ |
a7b928ac CL |
1549 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 0, "%s Part A", 128), |
1550 | ROLAND_SYNTH_PORT(0x0582, 0x0016, 1, "%s Part B", 128), | |
1551 | EXTERNAL_PORT(0x0582, 0x0016, 2, "%s MIDI 1"), | |
1552 | EXTERNAL_PORT(0x0582, 0x0016, 3, "%s MIDI 2"), | |
1da177e4 | 1553 | /* Edirol UM-550 */ |
a7b928ac | 1554 | CONTROL_PORT(0x0582, 0x0023, 5, "%s Control"), |
1da177e4 | 1555 | /* Edirol SD-20 */ |
a7b928ac CL |
1556 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 0, "%s Part A", 64), |
1557 | ROLAND_SYNTH_PORT(0x0582, 0x0027, 1, "%s Part B", 64), | |
1558 | EXTERNAL_PORT(0x0582, 0x0027, 2, "%s MIDI"), | |
1da177e4 | 1559 | /* Edirol SD-80 */ |
a7b928ac CL |
1560 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 0, "%s Part A", 128), |
1561 | ROLAND_SYNTH_PORT(0x0582, 0x0029, 1, "%s Part B", 128), | |
1562 | EXTERNAL_PORT(0x0582, 0x0029, 2, "%s MIDI 1"), | |
1563 | EXTERNAL_PORT(0x0582, 0x0029, 3, "%s MIDI 2"), | |
1da177e4 | 1564 | /* Edirol UA-700 */ |
a7b928ac CL |
1565 | EXTERNAL_PORT(0x0582, 0x002b, 0, "%s MIDI"), |
1566 | CONTROL_PORT(0x0582, 0x002b, 1, "%s Control"), | |
1da177e4 | 1567 | /* Roland VariOS */ |
a7b928ac CL |
1568 | EXTERNAL_PORT(0x0582, 0x002f, 0, "%s MIDI"), |
1569 | EXTERNAL_PORT(0x0582, 0x002f, 1, "%s External MIDI"), | |
1570 | EXTERNAL_PORT(0x0582, 0x002f, 2, "%s Sync"), | |
1da177e4 | 1571 | /* Edirol PCR */ |
a7b928ac CL |
1572 | EXTERNAL_PORT(0x0582, 0x0033, 0, "%s MIDI"), |
1573 | EXTERNAL_PORT(0x0582, 0x0033, 1, "%s 1"), | |
1574 | EXTERNAL_PORT(0x0582, 0x0033, 2, "%s 2"), | |
1da177e4 | 1575 | /* BOSS GS-10 */ |
a7b928ac CL |
1576 | EXTERNAL_PORT(0x0582, 0x003b, 0, "%s MIDI"), |
1577 | CONTROL_PORT(0x0582, 0x003b, 1, "%s Control"), | |
1da177e4 | 1578 | /* Edirol UA-1000 */ |
a7b928ac CL |
1579 | EXTERNAL_PORT(0x0582, 0x0044, 0, "%s MIDI"), |
1580 | CONTROL_PORT(0x0582, 0x0044, 1, "%s Control"), | |
1da177e4 | 1581 | /* Edirol UR-80 */ |
a7b928ac CL |
1582 | EXTERNAL_PORT(0x0582, 0x0048, 0, "%s MIDI"), |
1583 | EXTERNAL_PORT(0x0582, 0x0048, 1, "%s 1"), | |
1584 | EXTERNAL_PORT(0x0582, 0x0048, 2, "%s 2"), | |
1da177e4 | 1585 | /* Edirol PCR-A */ |
a7b928ac CL |
1586 | EXTERNAL_PORT(0x0582, 0x004d, 0, "%s MIDI"), |
1587 | EXTERNAL_PORT(0x0582, 0x004d, 1, "%s 1"), | |
1588 | EXTERNAL_PORT(0x0582, 0x004d, 2, "%s 2"), | |
7c79b768 | 1589 | /* Edirol UM-3EX */ |
a7b928ac | 1590 | CONTROL_PORT(0x0582, 0x009a, 3, "%s Control"), |
1da177e4 | 1591 | /* M-Audio MidiSport 8x8 */ |
a7b928ac CL |
1592 | CONTROL_PORT(0x0763, 0x1031, 8, "%s Control"), |
1593 | CONTROL_PORT(0x0763, 0x1033, 8, "%s Control"), | |
1da177e4 | 1594 | /* MOTU Fastlane */ |
a7b928ac CL |
1595 | EXTERNAL_PORT(0x07fd, 0x0001, 0, "%s MIDI A"), |
1596 | EXTERNAL_PORT(0x07fd, 0x0001, 1, "%s MIDI B"), | |
1da177e4 | 1597 | /* Emagic Unitor8/AMT8/MT4 */ |
a7b928ac CL |
1598 | EXTERNAL_PORT(0x086a, 0x0001, 8, "%s Broadcast"), |
1599 | EXTERNAL_PORT(0x086a, 0x0002, 8, "%s Broadcast"), | |
1600 | EXTERNAL_PORT(0x086a, 0x0003, 4, "%s Broadcast"), | |
4434ade8 KF |
1601 | /* Akai MPD16 */ |
1602 | CONTROL_PORT(0x09e8, 0x0062, 0, "%s Control"), | |
1603 | PORT_INFO(0x09e8, 0x0062, 1, "%s MIDI", 0, | |
1604 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1605 | SNDRV_SEQ_PORT_TYPE_HARDWARE), | |
d39e82db SA |
1606 | /* Access Music Virus TI */ |
1607 | EXTERNAL_PORT(0x133e, 0x0815, 0, "%s MIDI"), | |
1608 | PORT_INFO(0x133e, 0x0815, 1, "%s Synth", 0, | |
1609 | SNDRV_SEQ_PORT_TYPE_MIDI_GENERIC | | |
1610 | SNDRV_SEQ_PORT_TYPE_HARDWARE | | |
1611 | SNDRV_SEQ_PORT_TYPE_SYNTHESIZER), | |
1da177e4 LT |
1612 | }; |
1613 | ||
a7b928ac CL |
1614 | static struct port_info *find_port_info(struct snd_usb_midi* umidi, int number) |
1615 | { | |
1616 | int i; | |
1617 | ||
1618 | for (i = 0; i < ARRAY_SIZE(snd_usbmidi_port_info); ++i) { | |
d82af9f9 | 1619 | if (snd_usbmidi_port_info[i].id == umidi->usb_id && |
a7b928ac CL |
1620 | snd_usbmidi_port_info[i].port == number) |
1621 | return &snd_usbmidi_port_info[i]; | |
1622 | } | |
1623 | return NULL; | |
1624 | } | |
1625 | ||
1626 | static void snd_usbmidi_get_port_info(struct snd_rawmidi *rmidi, int number, | |
1627 | struct snd_seq_port_info *seq_port_info) | |
1628 | { | |
1629 | struct snd_usb_midi *umidi = rmidi->private_data; | |
1630 | struct port_info *port_info; | |
1631 | ||
1632 | /* TODO: read port flags from descriptors */ | |
1633 | port_info = find_port_info(umidi, number); | |
1634 | if (port_info) { | |
1635 | seq_port_info->type = port_info->seq_flags; | |
1636 | seq_port_info->midi_voices = port_info->voices; | |
1637 | } | |
1638 | } | |
1639 | ||
86e07d34 | 1640 | static void snd_usbmidi_init_substream(struct snd_usb_midi* umidi, |
1da177e4 | 1641 | int stream, int number, |
86e07d34 | 1642 | struct snd_rawmidi_substream ** rsubstream) |
1da177e4 | 1643 | { |
a7b928ac | 1644 | struct port_info *port_info; |
1da177e4 LT |
1645 | const char *name_format; |
1646 | ||
86e07d34 | 1647 | struct snd_rawmidi_substream *substream = snd_usbmidi_find_substream(umidi, stream, number); |
1da177e4 LT |
1648 | if (!substream) { |
1649 | snd_printd(KERN_ERR "substream %d:%d not found\n", stream, number); | |
1650 | return; | |
1651 | } | |
1652 | ||
1653 | /* TODO: read port name from jack descriptor */ | |
a7b928ac CL |
1654 | port_info = find_port_info(umidi, number); |
1655 | name_format = port_info ? port_info->name : "%s MIDI %d"; | |
1da177e4 | 1656 | snprintf(substream->name, sizeof(substream->name), |
d82af9f9 | 1657 | name_format, umidi->card->shortname, number + 1); |
1da177e4 LT |
1658 | |
1659 | *rsubstream = substream; | |
1660 | } | |
1661 | ||
1662 | /* | |
1663 | * Creates the endpoints and their ports. | |
1664 | */ | |
86e07d34 TI |
1665 | static int snd_usbmidi_create_endpoints(struct snd_usb_midi* umidi, |
1666 | struct snd_usb_midi_endpoint_info* endpoints) | |
1da177e4 LT |
1667 | { |
1668 | int i, j, err; | |
1669 | int out_ports = 0, in_ports = 0; | |
1670 | ||
1671 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
1672 | if (endpoints[i].out_cables) { | |
1673 | err = snd_usbmidi_out_endpoint_create(umidi, &endpoints[i], | |
1674 | &umidi->endpoints[i]); | |
1675 | if (err < 0) | |
1676 | return err; | |
1677 | } | |
1678 | if (endpoints[i].in_cables) { | |
1679 | err = snd_usbmidi_in_endpoint_create(umidi, &endpoints[i], | |
1680 | &umidi->endpoints[i]); | |
1681 | if (err < 0) | |
1682 | return err; | |
1683 | } | |
1684 | ||
1685 | for (j = 0; j < 0x10; ++j) { | |
1686 | if (endpoints[i].out_cables & (1 << j)) { | |
1687 | snd_usbmidi_init_substream(umidi, SNDRV_RAWMIDI_STREAM_OUTPUT, out_ports, | |
1688 | &umidi->endpoints[i].out->ports[j].substream); | |
1689 | ++out_ports; | |
1690 | } | |
1691 | if (endpoints[i].in_cables & (1 << j)) { | |
1692 | snd_usbmidi_init_substream(umidi, SNDRV_RAWMIDI_STREAM_INPUT, in_ports, | |
1693 | &umidi->endpoints[i].in->ports[j].substream); | |
1694 | ++in_ports; | |
1695 | } | |
1696 | } | |
1697 | } | |
1698 | snd_printdd(KERN_INFO "created %d output and %d input ports\n", | |
1699 | out_ports, in_ports); | |
1700 | return 0; | |
1701 | } | |
1702 | ||
1703 | /* | |
1704 | * Returns MIDIStreaming device capabilities. | |
1705 | */ | |
86e07d34 TI |
1706 | static int snd_usbmidi_get_ms_info(struct snd_usb_midi* umidi, |
1707 | struct snd_usb_midi_endpoint_info* endpoints) | |
1da177e4 LT |
1708 | { |
1709 | struct usb_interface* intf; | |
1710 | struct usb_host_interface *hostif; | |
1711 | struct usb_interface_descriptor* intfd; | |
1712 | struct usb_ms_header_descriptor* ms_header; | |
1713 | struct usb_host_endpoint *hostep; | |
1714 | struct usb_endpoint_descriptor* ep; | |
1715 | struct usb_ms_endpoint_descriptor* ms_ep; | |
1716 | int i, epidx; | |
1717 | ||
1718 | intf = umidi->iface; | |
1719 | if (!intf) | |
1720 | return -ENXIO; | |
1721 | hostif = &intf->altsetting[0]; | |
1722 | intfd = get_iface_desc(hostif); | |
1723 | ms_header = (struct usb_ms_header_descriptor*)hostif->extra; | |
1724 | if (hostif->extralen >= 7 && | |
1725 | ms_header->bLength >= 7 && | |
1726 | ms_header->bDescriptorType == USB_DT_CS_INTERFACE && | |
de48c7bc | 1727 | ms_header->bDescriptorSubtype == UAC_HEADER) |
1da177e4 LT |
1728 | snd_printdd(KERN_INFO "MIDIStreaming version %02x.%02x\n", |
1729 | ms_header->bcdMSC[1], ms_header->bcdMSC[0]); | |
1730 | else | |
1731 | snd_printk(KERN_WARNING "MIDIStreaming interface descriptor not found\n"); | |
1732 | ||
1733 | epidx = 0; | |
1734 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1735 | hostep = &hostif->endpoint[i]; | |
1736 | ep = get_ep_desc(hostep); | |
913ae5a2 | 1737 | if (!usb_endpoint_xfer_bulk(ep) && !usb_endpoint_xfer_int(ep)) |
1da177e4 LT |
1738 | continue; |
1739 | ms_ep = (struct usb_ms_endpoint_descriptor*)hostep->extra; | |
1740 | if (hostep->extralen < 4 || | |
1741 | ms_ep->bLength < 4 || | |
1742 | ms_ep->bDescriptorType != USB_DT_CS_ENDPOINT || | |
de48c7bc | 1743 | ms_ep->bDescriptorSubtype != UAC_MS_GENERAL) |
1da177e4 | 1744 | continue; |
42a6e66f | 1745 | if (usb_endpoint_dir_out(ep)) { |
1da177e4 LT |
1746 | if (endpoints[epidx].out_ep) { |
1747 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
1748 | snd_printk(KERN_WARNING "too many endpoints\n"); | |
1749 | break; | |
1750 | } | |
1751 | } | |
42a6e66f JL |
1752 | endpoints[epidx].out_ep = usb_endpoint_num(ep); |
1753 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1754 | endpoints[epidx].out_interval = ep->bInterval; |
d82af9f9 | 1755 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab CL |
1756 | /* |
1757 | * Low speed bulk transfers don't exist, so | |
1758 | * force interrupt transfers for devices like | |
1759 | * ESI MIDI Mate that try to use them anyway. | |
1760 | */ | |
1761 | endpoints[epidx].out_interval = 1; | |
1da177e4 LT |
1762 | endpoints[epidx].out_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1; |
1763 | snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n", | |
1764 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); | |
1765 | } else { | |
1766 | if (endpoints[epidx].in_ep) { | |
1767 | if (++epidx >= MIDI_MAX_ENDPOINTS) { | |
1768 | snd_printk(KERN_WARNING "too many endpoints\n"); | |
1769 | break; | |
1770 | } | |
1771 | } | |
42a6e66f JL |
1772 | endpoints[epidx].in_ep = usb_endpoint_num(ep); |
1773 | if (usb_endpoint_xfer_int(ep)) | |
1da177e4 | 1774 | endpoints[epidx].in_interval = ep->bInterval; |
d82af9f9 | 1775 | else if (snd_usb_get_speed(umidi->dev) == USB_SPEED_LOW) |
56162aab | 1776 | endpoints[epidx].in_interval = 1; |
1da177e4 LT |
1777 | endpoints[epidx].in_cables = (1 << ms_ep->bNumEmbMIDIJack) - 1; |
1778 | snd_printdd(KERN_INFO "EP %02X: %d jack(s)\n", | |
1779 | ep->bEndpointAddress, ms_ep->bNumEmbMIDIJack); | |
1780 | } | |
1781 | } | |
1782 | return 0; | |
1783 | } | |
1784 | ||
96f61d9a CL |
1785 | static int roland_load_info(struct snd_kcontrol *kcontrol, |
1786 | struct snd_ctl_elem_info *info) | |
1787 | { | |
1788 | static const char *const names[] = { "High Load", "Light Load" }; | |
1789 | ||
2a1803a7 | 1790 | return snd_ctl_enum_info(info, 1, 2, names); |
96f61d9a CL |
1791 | } |
1792 | ||
1793 | static int roland_load_get(struct snd_kcontrol *kcontrol, | |
1794 | struct snd_ctl_elem_value *value) | |
1795 | { | |
1796 | value->value.enumerated.item[0] = kcontrol->private_value; | |
1797 | return 0; | |
1798 | } | |
1799 | ||
1800 | static int roland_load_put(struct snd_kcontrol *kcontrol, | |
1801 | struct snd_ctl_elem_value *value) | |
1802 | { | |
1803 | struct snd_usb_midi* umidi = kcontrol->private_data; | |
1804 | int changed; | |
1805 | ||
1806 | if (value->value.enumerated.item[0] > 1) | |
1807 | return -EINVAL; | |
1808 | mutex_lock(&umidi->mutex); | |
1809 | changed = value->value.enumerated.item[0] != kcontrol->private_value; | |
1810 | if (changed) | |
1811 | kcontrol->private_value = value->value.enumerated.item[0]; | |
1812 | mutex_unlock(&umidi->mutex); | |
1813 | return changed; | |
1814 | } | |
1815 | ||
1816 | static struct snd_kcontrol_new roland_load_ctl = { | |
1817 | .iface = SNDRV_CTL_ELEM_IFACE_MIXER, | |
1818 | .name = "MIDI Input Mode", | |
1819 | .info = roland_load_info, | |
1820 | .get = roland_load_get, | |
1821 | .put = roland_load_put, | |
1822 | .private_value = 1, | |
1823 | }; | |
1824 | ||
1da177e4 LT |
1825 | /* |
1826 | * On Roland devices, use the second alternate setting to be able to use | |
1827 | * the interrupt input endpoint. | |
1828 | */ | |
86e07d34 | 1829 | static void snd_usbmidi_switch_roland_altsetting(struct snd_usb_midi* umidi) |
1da177e4 LT |
1830 | { |
1831 | struct usb_interface* intf; | |
1832 | struct usb_host_interface *hostif; | |
1833 | struct usb_interface_descriptor* intfd; | |
1834 | ||
1835 | intf = umidi->iface; | |
1836 | if (!intf || intf->num_altsetting != 2) | |
1837 | return; | |
1838 | ||
1839 | hostif = &intf->altsetting[1]; | |
1840 | intfd = get_iface_desc(hostif); | |
1841 | if (intfd->bNumEndpoints != 2 || | |
1842 | (get_endpoint(hostif, 0)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_BULK || | |
1843 | (get_endpoint(hostif, 1)->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK) != USB_ENDPOINT_XFER_INT) | |
1844 | return; | |
1845 | ||
1846 | snd_printdd(KERN_INFO "switching to altsetting %d with int ep\n", | |
1847 | intfd->bAlternateSetting); | |
d82af9f9 | 1848 | usb_set_interface(umidi->dev, intfd->bInterfaceNumber, |
1da177e4 | 1849 | intfd->bAlternateSetting); |
96f61d9a CL |
1850 | |
1851 | umidi->roland_load_ctl = snd_ctl_new1(&roland_load_ctl, umidi); | |
d82af9f9 | 1852 | if (snd_ctl_add(umidi->card, umidi->roland_load_ctl) < 0) |
96f61d9a | 1853 | umidi->roland_load_ctl = NULL; |
1da177e4 LT |
1854 | } |
1855 | ||
1856 | /* | |
1857 | * Try to find any usable endpoints in the interface. | |
1858 | */ | |
86e07d34 TI |
1859 | static int snd_usbmidi_detect_endpoints(struct snd_usb_midi* umidi, |
1860 | struct snd_usb_midi_endpoint_info* endpoint, | |
1da177e4 LT |
1861 | int max_endpoints) |
1862 | { | |
1863 | struct usb_interface* intf; | |
1864 | struct usb_host_interface *hostif; | |
1865 | struct usb_interface_descriptor* intfd; | |
1866 | struct usb_endpoint_descriptor* epd; | |
1867 | int i, out_eps = 0, in_eps = 0; | |
1868 | ||
d82af9f9 | 1869 | if (USB_ID_VENDOR(umidi->usb_id) == 0x0582) |
1da177e4 LT |
1870 | snd_usbmidi_switch_roland_altsetting(umidi); |
1871 | ||
c1ab5d59 | 1872 | if (endpoint[0].out_ep || endpoint[0].in_ep) |
21af7d8c | 1873 | return 0; |
c1ab5d59 | 1874 | |
1da177e4 LT |
1875 | intf = umidi->iface; |
1876 | if (!intf || intf->num_altsetting < 1) | |
1877 | return -ENOENT; | |
1878 | hostif = intf->cur_altsetting; | |
1879 | intfd = get_iface_desc(hostif); | |
1880 | ||
1881 | for (i = 0; i < intfd->bNumEndpoints; ++i) { | |
1882 | epd = get_endpoint(hostif, i); | |
913ae5a2 JL |
1883 | if (!usb_endpoint_xfer_bulk(epd) && |
1884 | !usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
1885 | continue; |
1886 | if (out_eps < max_endpoints && | |
42a6e66f JL |
1887 | usb_endpoint_dir_out(epd)) { |
1888 | endpoint[out_eps].out_ep = usb_endpoint_num(epd); | |
1889 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
1890 | endpoint[out_eps].out_interval = epd->bInterval; |
1891 | ++out_eps; | |
1892 | } | |
1893 | if (in_eps < max_endpoints && | |
42a6e66f JL |
1894 | usb_endpoint_dir_in(epd)) { |
1895 | endpoint[in_eps].in_ep = usb_endpoint_num(epd); | |
1896 | if (usb_endpoint_xfer_int(epd)) | |
1da177e4 LT |
1897 | endpoint[in_eps].in_interval = epd->bInterval; |
1898 | ++in_eps; | |
1899 | } | |
1900 | } | |
1901 | return (out_eps || in_eps) ? 0 : -ENOENT; | |
1902 | } | |
1903 | ||
1904 | /* | |
1905 | * Detects the endpoints for one-port-per-endpoint protocols. | |
1906 | */ | |
86e07d34 TI |
1907 | static int snd_usbmidi_detect_per_port_endpoints(struct snd_usb_midi* umidi, |
1908 | struct snd_usb_midi_endpoint_info* endpoints) | |
1da177e4 LT |
1909 | { |
1910 | int err, i; | |
21af7d8c | 1911 | |
1da177e4 LT |
1912 | err = snd_usbmidi_detect_endpoints(umidi, endpoints, MIDI_MAX_ENDPOINTS); |
1913 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
1914 | if (endpoints[i].out_ep) | |
1915 | endpoints[i].out_cables = 0x0001; | |
1916 | if (endpoints[i].in_ep) | |
1917 | endpoints[i].in_cables = 0x0001; | |
1918 | } | |
1919 | return err; | |
1920 | } | |
1921 | ||
1922 | /* | |
1923 | * Detects the endpoints and ports of Yamaha devices. | |
1924 | */ | |
86e07d34 TI |
1925 | static int snd_usbmidi_detect_yamaha(struct snd_usb_midi* umidi, |
1926 | struct snd_usb_midi_endpoint_info* endpoint) | |
1da177e4 LT |
1927 | { |
1928 | struct usb_interface* intf; | |
1929 | struct usb_host_interface *hostif; | |
1930 | struct usb_interface_descriptor* intfd; | |
1931 | uint8_t* cs_desc; | |
1932 | ||
1933 | intf = umidi->iface; | |
1934 | if (!intf) | |
1935 | return -ENOENT; | |
1936 | hostif = intf->altsetting; | |
1937 | intfd = get_iface_desc(hostif); | |
1938 | if (intfd->bNumEndpoints < 1) | |
1939 | return -ENOENT; | |
1940 | ||
1941 | /* | |
1942 | * For each port there is one MIDI_IN/OUT_JACK descriptor, not | |
1943 | * necessarily with any useful contents. So simply count 'em. | |
1944 | */ | |
1945 | for (cs_desc = hostif->extra; | |
1946 | cs_desc < hostif->extra + hostif->extralen && cs_desc[0] >= 2; | |
1947 | cs_desc += cs_desc[0]) { | |
c4a87ef4 | 1948 | if (cs_desc[1] == USB_DT_CS_INTERFACE) { |
de48c7bc | 1949 | if (cs_desc[2] == UAC_MIDI_IN_JACK) |
1da177e4 | 1950 | endpoint->in_cables = (endpoint->in_cables << 1) | 1; |
de48c7bc | 1951 | else if (cs_desc[2] == UAC_MIDI_OUT_JACK) |
1da177e4 LT |
1952 | endpoint->out_cables = (endpoint->out_cables << 1) | 1; |
1953 | } | |
1954 | } | |
1955 | if (!endpoint->in_cables && !endpoint->out_cables) | |
1956 | return -ENOENT; | |
1957 | ||
1958 | return snd_usbmidi_detect_endpoints(umidi, endpoint, 1); | |
1959 | } | |
1960 | ||
1961 | /* | |
1962 | * Creates the endpoints and their ports for Midiman devices. | |
1963 | */ | |
86e07d34 TI |
1964 | static int snd_usbmidi_create_endpoints_midiman(struct snd_usb_midi* umidi, |
1965 | struct snd_usb_midi_endpoint_info* endpoint) | |
1da177e4 | 1966 | { |
86e07d34 | 1967 | struct snd_usb_midi_endpoint_info ep_info; |
1da177e4 LT |
1968 | struct usb_interface* intf; |
1969 | struct usb_host_interface *hostif; | |
1970 | struct usb_interface_descriptor* intfd; | |
1971 | struct usb_endpoint_descriptor* epd; | |
1972 | int cable, err; | |
1973 | ||
1974 | intf = umidi->iface; | |
1975 | if (!intf) | |
1976 | return -ENOENT; | |
1977 | hostif = intf->altsetting; | |
1978 | intfd = get_iface_desc(hostif); | |
1979 | /* | |
1980 | * The various MidiSport devices have more or less random endpoint | |
1981 | * numbers, so we have to identify the endpoints by their index in | |
1982 | * the descriptor array, like the driver for that other OS does. | |
1983 | * | |
1984 | * There is one interrupt input endpoint for all input ports, one | |
1985 | * bulk output endpoint for even-numbered ports, and one for odd- | |
1986 | * numbered ports. Both bulk output endpoints have corresponding | |
1987 | * input bulk endpoints (at indices 1 and 3) which aren't used. | |
1988 | */ | |
1989 | if (intfd->bNumEndpoints < (endpoint->out_cables > 0x0001 ? 5 : 3)) { | |
1990 | snd_printdd(KERN_ERR "not enough endpoints\n"); | |
1991 | return -ENOENT; | |
1992 | } | |
1993 | ||
1994 | epd = get_endpoint(hostif, 0); | |
913ae5a2 | 1995 | if (!usb_endpoint_dir_in(epd) || !usb_endpoint_xfer_int(epd)) { |
1da177e4 LT |
1996 | snd_printdd(KERN_ERR "endpoint[0] isn't interrupt\n"); |
1997 | return -ENXIO; | |
1998 | } | |
1999 | epd = get_endpoint(hostif, 2); | |
913ae5a2 | 2000 | if (!usb_endpoint_dir_out(epd) || !usb_endpoint_xfer_bulk(epd)) { |
1da177e4 LT |
2001 | snd_printdd(KERN_ERR "endpoint[2] isn't bulk output\n"); |
2002 | return -ENXIO; | |
2003 | } | |
2004 | if (endpoint->out_cables > 0x0001) { | |
2005 | epd = get_endpoint(hostif, 4); | |
913ae5a2 JL |
2006 | if (!usb_endpoint_dir_out(epd) || |
2007 | !usb_endpoint_xfer_bulk(epd)) { | |
1da177e4 LT |
2008 | snd_printdd(KERN_ERR "endpoint[4] isn't bulk output\n"); |
2009 | return -ENXIO; | |
2010 | } | |
2011 | } | |
2012 | ||
2013 | ep_info.out_ep = get_endpoint(hostif, 2)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; | |
e156ac4c | 2014 | ep_info.out_interval = 0; |
1da177e4 LT |
2015 | ep_info.out_cables = endpoint->out_cables & 0x5555; |
2016 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, &umidi->endpoints[0]); | |
2017 | if (err < 0) | |
2018 | return err; | |
2019 | ||
2020 | ep_info.in_ep = get_endpoint(hostif, 0)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; | |
2021 | ep_info.in_interval = get_endpoint(hostif, 0)->bInterval; | |
2022 | ep_info.in_cables = endpoint->in_cables; | |
2023 | err = snd_usbmidi_in_endpoint_create(umidi, &ep_info, &umidi->endpoints[0]); | |
2024 | if (err < 0) | |
2025 | return err; | |
2026 | ||
2027 | if (endpoint->out_cables > 0x0001) { | |
2028 | ep_info.out_ep = get_endpoint(hostif, 4)->bEndpointAddress & USB_ENDPOINT_NUMBER_MASK; | |
2029 | ep_info.out_cables = endpoint->out_cables & 0xaaaa; | |
2030 | err = snd_usbmidi_out_endpoint_create(umidi, &ep_info, &umidi->endpoints[1]); | |
2031 | if (err < 0) | |
2032 | return err; | |
2033 | } | |
2034 | ||
2035 | for (cable = 0; cable < 0x10; ++cable) { | |
2036 | if (endpoint->out_cables & (1 << cable)) | |
2037 | snd_usbmidi_init_substream(umidi, SNDRV_RAWMIDI_STREAM_OUTPUT, cable, | |
2038 | &umidi->endpoints[cable & 1].out->ports[cable].substream); | |
2039 | if (endpoint->in_cables & (1 << cable)) | |
2040 | snd_usbmidi_init_substream(umidi, SNDRV_RAWMIDI_STREAM_INPUT, cable, | |
2041 | &umidi->endpoints[0].in->ports[cable].substream); | |
2042 | } | |
2043 | return 0; | |
2044 | } | |
2045 | ||
a7b928ac CL |
2046 | static struct snd_rawmidi_global_ops snd_usbmidi_ops = { |
2047 | .get_port_info = snd_usbmidi_get_port_info, | |
2048 | }; | |
2049 | ||
86e07d34 | 2050 | static int snd_usbmidi_create_rawmidi(struct snd_usb_midi* umidi, |
1da177e4 LT |
2051 | int out_ports, int in_ports) |
2052 | { | |
86e07d34 | 2053 | struct snd_rawmidi *rmidi; |
1da177e4 LT |
2054 | int err; |
2055 | ||
d82af9f9 CL |
2056 | err = snd_rawmidi_new(umidi->card, "USB MIDI", |
2057 | umidi->next_midi_device++, | |
1da177e4 LT |
2058 | out_ports, in_ports, &rmidi); |
2059 | if (err < 0) | |
2060 | return err; | |
d82af9f9 | 2061 | strcpy(rmidi->name, umidi->card->shortname); |
1da177e4 LT |
2062 | rmidi->info_flags = SNDRV_RAWMIDI_INFO_OUTPUT | |
2063 | SNDRV_RAWMIDI_INFO_INPUT | | |
2064 | SNDRV_RAWMIDI_INFO_DUPLEX; | |
a7b928ac | 2065 | rmidi->ops = &snd_usbmidi_ops; |
1da177e4 LT |
2066 | rmidi->private_data = umidi; |
2067 | rmidi->private_free = snd_usbmidi_rawmidi_free; | |
2068 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_OUTPUT, &snd_usbmidi_output_ops); | |
2069 | snd_rawmidi_set_ops(rmidi, SNDRV_RAWMIDI_STREAM_INPUT, &snd_usbmidi_input_ops); | |
2070 | ||
2071 | umidi->rmidi = rmidi; | |
2072 | return 0; | |
2073 | } | |
2074 | ||
2075 | /* | |
2076 | * Temporarily stop input. | |
2077 | */ | |
2078 | void snd_usbmidi_input_stop(struct list_head* p) | |
2079 | { | |
86e07d34 | 2080 | struct snd_usb_midi* umidi; |
4773d1fb | 2081 | unsigned int i, j; |
1da177e4 | 2082 | |
86e07d34 | 2083 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2084 | if (!umidi->input_running) |
2085 | return; | |
1da177e4 | 2086 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { |
86e07d34 | 2087 | struct snd_usb_midi_endpoint* ep = &umidi->endpoints[i]; |
1da177e4 | 2088 | if (ep->in) |
4773d1fb CL |
2089 | for (j = 0; j < INPUT_URBS; ++j) |
2090 | usb_kill_urb(ep->in->urbs[j]); | |
1da177e4 | 2091 | } |
f5f16541 | 2092 | umidi->input_running = 0; |
1da177e4 LT |
2093 | } |
2094 | ||
86e07d34 | 2095 | static void snd_usbmidi_input_start_ep(struct snd_usb_midi_in_endpoint* ep) |
1da177e4 | 2096 | { |
4773d1fb CL |
2097 | unsigned int i; |
2098 | ||
2099 | if (!ep) | |
2100 | return; | |
2101 | for (i = 0; i < INPUT_URBS; ++i) { | |
2102 | struct urb* urb = ep->urbs[i]; | |
d82af9f9 | 2103 | urb->dev = ep->umidi->dev; |
1da177e4 LT |
2104 | snd_usbmidi_submit_urb(urb, GFP_KERNEL); |
2105 | } | |
2106 | } | |
2107 | ||
2108 | /* | |
2109 | * Resume input after a call to snd_usbmidi_input_stop(). | |
2110 | */ | |
2111 | void snd_usbmidi_input_start(struct list_head* p) | |
2112 | { | |
86e07d34 | 2113 | struct snd_usb_midi* umidi; |
1da177e4 LT |
2114 | int i; |
2115 | ||
86e07d34 | 2116 | umidi = list_entry(p, struct snd_usb_midi, list); |
f5f16541 TI |
2117 | if (umidi->input_running || !umidi->opened[1]) |
2118 | return; | |
1da177e4 LT |
2119 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) |
2120 | snd_usbmidi_input_start_ep(umidi->endpoints[i].in); | |
f5f16541 | 2121 | umidi->input_running = 1; |
1da177e4 LT |
2122 | } |
2123 | ||
2124 | /* | |
2125 | * Creates and registers everything needed for a MIDI streaming interface. | |
2126 | */ | |
d82af9f9 CL |
2127 | int snd_usbmidi_create(struct snd_card *card, |
2128 | struct usb_interface* iface, | |
2129 | struct list_head *midi_list, | |
2130 | const struct snd_usb_audio_quirk* quirk) | |
1da177e4 | 2131 | { |
86e07d34 TI |
2132 | struct snd_usb_midi* umidi; |
2133 | struct snd_usb_midi_endpoint_info endpoints[MIDI_MAX_ENDPOINTS]; | |
1da177e4 LT |
2134 | int out_ports, in_ports; |
2135 | int i, err; | |
2136 | ||
561b220a | 2137 | umidi = kzalloc(sizeof(*umidi), GFP_KERNEL); |
1da177e4 LT |
2138 | if (!umidi) |
2139 | return -ENOMEM; | |
d82af9f9 CL |
2140 | umidi->dev = interface_to_usbdev(iface); |
2141 | umidi->card = card; | |
1da177e4 LT |
2142 | umidi->iface = iface; |
2143 | umidi->quirk = quirk; | |
2144 | umidi->usb_protocol_ops = &snd_usbmidi_standard_ops; | |
c8846970 | 2145 | init_timer(&umidi->error_timer); |
c0792e00 | 2146 | spin_lock_init(&umidi->disc_lock); |
59866da9 | 2147 | init_rwsem(&umidi->disc_rwsem); |
96f61d9a | 2148 | mutex_init(&umidi->mutex); |
d82af9f9 CL |
2149 | umidi->usb_id = USB_ID(le16_to_cpu(umidi->dev->descriptor.idVendor), |
2150 | le16_to_cpu(umidi->dev->descriptor.idProduct)); | |
c8846970 CL |
2151 | umidi->error_timer.function = snd_usbmidi_error_timer; |
2152 | umidi->error_timer.data = (unsigned long)umidi; | |
1da177e4 LT |
2153 | |
2154 | /* detect the endpoint(s) to use */ | |
2155 | memset(endpoints, 0, sizeof(endpoints)); | |
d1bda045 CL |
2156 | switch (quirk ? quirk->type : QUIRK_MIDI_STANDARD_INTERFACE) { |
2157 | case QUIRK_MIDI_STANDARD_INTERFACE: | |
1da177e4 | 2158 | err = snd_usbmidi_get_ms_info(umidi, endpoints); |
d82af9f9 | 2159 | if (umidi->usb_id == USB_ID(0x0763, 0x0150)) /* M-Audio Uno */ |
d05cc104 CL |
2160 | umidi->usb_protocol_ops = |
2161 | &snd_usbmidi_maudio_broken_running_status_ops; | |
d1bda045 | 2162 | break; |
030a07e4 KW |
2163 | case QUIRK_MIDI_US122L: |
2164 | umidi->usb_protocol_ops = &snd_usbmidi_122l_ops; | |
2165 | /* fall through */ | |
d1bda045 CL |
2166 | case QUIRK_MIDI_FIXED_ENDPOINT: |
2167 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2168 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2169 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2170 | break; | |
2171 | case QUIRK_MIDI_YAMAHA: | |
2172 | err = snd_usbmidi_detect_yamaha(umidi, &endpoints[0]); | |
2173 | break; | |
2174 | case QUIRK_MIDI_MIDIMAN: | |
2175 | umidi->usb_protocol_ops = &snd_usbmidi_midiman_ops; | |
2176 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2177 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2178 | err = 0; |
2179 | break; | |
2180 | case QUIRK_MIDI_NOVATION: | |
2181 | umidi->usb_protocol_ops = &snd_usbmidi_novation_ops; | |
2182 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2183 | break; | |
c7f57216 | 2184 | case QUIRK_MIDI_RAW_BYTES: |
d1bda045 | 2185 | umidi->usb_protocol_ops = &snd_usbmidi_raw_ops; |
55de5ef9 CL |
2186 | /* |
2187 | * Interface 1 contains isochronous endpoints, but with the same | |
2188 | * numbers as in interface 0. Since it is interface 1 that the | |
2189 | * USB core has most recently seen, these descriptors are now | |
2190 | * associated with the endpoint numbers. This will foul up our | |
2191 | * attempts to submit bulk/interrupt URBs to the endpoints in | |
2192 | * interface 0, so we have to make sure that the USB core looks | |
2193 | * again at interface 0 by calling usb_set_interface() on it. | |
2194 | */ | |
c7f57216 CL |
2195 | if (umidi->usb_id == USB_ID(0x07fd, 0x0001)) /* MOTU Fastlane */ |
2196 | usb_set_interface(umidi->dev, 0, 0); | |
d1bda045 CL |
2197 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2198 | break; | |
2199 | case QUIRK_MIDI_EMAGIC: | |
2200 | umidi->usb_protocol_ops = &snd_usbmidi_emagic_ops; | |
2201 | memcpy(&endpoints[0], quirk->data, | |
86e07d34 | 2202 | sizeof(struct snd_usb_midi_endpoint_info)); |
d1bda045 CL |
2203 | err = snd_usbmidi_detect_endpoints(umidi, &endpoints[0], 1); |
2204 | break; | |
cc7a59bd | 2205 | case QUIRK_MIDI_CME: |
61870aed | 2206 | umidi->usb_protocol_ops = &snd_usbmidi_cme_ops; |
d1bda045 CL |
2207 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); |
2208 | break; | |
4434ade8 KF |
2209 | case QUIRK_MIDI_AKAI: |
2210 | umidi->usb_protocol_ops = &snd_usbmidi_akai_ops; | |
2211 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2212 | /* endpoint 1 is input-only */ | |
2213 | endpoints[1].out_cables = 0; | |
2214 | break; | |
1ef0e0a0 KA |
2215 | case QUIRK_MIDI_FTDI: |
2216 | umidi->usb_protocol_ops = &snd_usbmidi_ftdi_ops; | |
2217 | ||
2218 | /* set baud rate to 31250 (48 MHz / 16 / 96) */ | |
2219 | err = usb_control_msg(umidi->dev, usb_sndctrlpipe(umidi->dev, 0), | |
2220 | 3, 0x40, 0x60, 0, NULL, 0, 1000); | |
2221 | if (err < 0) | |
2222 | break; | |
2223 | ||
2224 | err = snd_usbmidi_detect_per_port_endpoints(umidi, endpoints); | |
2225 | break; | |
d1bda045 CL |
2226 | default: |
2227 | snd_printd(KERN_ERR "invalid quirk type %d\n", quirk->type); | |
2228 | err = -ENXIO; | |
2229 | break; | |
1da177e4 LT |
2230 | } |
2231 | if (err < 0) { | |
2232 | kfree(umidi); | |
2233 | return err; | |
2234 | } | |
2235 | ||
2236 | /* create rawmidi device */ | |
2237 | out_ports = 0; | |
2238 | in_ports = 0; | |
2239 | for (i = 0; i < MIDI_MAX_ENDPOINTS; ++i) { | |
fbc54391 AM |
2240 | out_ports += hweight16(endpoints[i].out_cables); |
2241 | in_ports += hweight16(endpoints[i].in_cables); | |
1da177e4 LT |
2242 | } |
2243 | err = snd_usbmidi_create_rawmidi(umidi, out_ports, in_ports); | |
2244 | if (err < 0) { | |
2245 | kfree(umidi); | |
2246 | return err; | |
2247 | } | |
2248 | ||
2249 | /* create endpoint/port structures */ | |
2250 | if (quirk && quirk->type == QUIRK_MIDI_MIDIMAN) | |
2251 | err = snd_usbmidi_create_endpoints_midiman(umidi, &endpoints[0]); | |
2252 | else | |
2253 | err = snd_usbmidi_create_endpoints(umidi, endpoints); | |
2254 | if (err < 0) { | |
2255 | snd_usbmidi_free(umidi); | |
2256 | return err; | |
2257 | } | |
2258 | ||
d82af9f9 | 2259 | list_add_tail(&umidi->list, midi_list); |
1da177e4 LT |
2260 | return 0; |
2261 | } | |
2262 | ||
d82af9f9 | 2263 | EXPORT_SYMBOL(snd_usbmidi_create); |
1da177e4 LT |
2264 | EXPORT_SYMBOL(snd_usbmidi_input_stop); |
2265 | EXPORT_SYMBOL(snd_usbmidi_input_start); | |
2266 | EXPORT_SYMBOL(snd_usbmidi_disconnect); |